How to increase blood and red blood cells: 4 tips to treat anemia and low blood pressure

Anemia, dehydration, or low blood volume can cause the body to constantly feel tired, dizzy, have difficulty concentrating, and experience reduced stamina. According to the World Health Organization (WHO), approximately 30% of the global population suffers from anemia to varying degrees, with common causes including iron deficiency, vitamin deficiency, or chronic illnesses. When blood volume and red blood cell count are insufficient, the body's ability to transport oxygen to organs also decreases, leading to inefficient body function.

If you are looking for ways to increase red blood cells, improve blood volume, and restore energy sustainably, this article will help you understand common causes, natural solutions through nutrition and lifestyle, and when to consult a doctor. Tiptory will guide you through practical methods to help your body increase red blood cell production, support blood circulation, and enhance overall health.

Increasing Red Blood Cells and Blood Volume

Drink enough water every day

This is the simplest and most effective way to help increase blood volume. When the body is dehydrated, the plasma volume in the blood decreases, making you feel dizzy, tired, and lacking energy.

• Drink water regularly throughout the day instead of waiting until you are thirsty.
• Drink more water when exercising a lot, in hot weather, or after sweating profusely.
• You can use filtered water, electrolyte water, or other suitable rehydration drinks.

Exercise regularly for endurance

Cardiovascular and endurance exercises can help the body adapt by increasing blood circulation and improving oxygen transport capacity.

• Maintain activities such as brisk walking, jogging, cycling, or swimming.
• Exercise regularly 3–5 sessions per week.
• The effect of increasing blood volume and supporting red blood cell production typically appears after several weeks or months of continuous training.

Supplement nutrients that support red blood cell production

For the body to produce enough red blood cells, it needs an adequate supply of essential micronutrients.

• Increase iron-rich foods such as red meat, animal liver, seafood, and legumes.
• Supplement vitamin B12 and folic acid from eggs, milk, fish, and green leafy vegetables.
• Combine vitamin C-rich foods to increase iron absorption.

Consider medical treatments when necessary

In some cases, lifestyle changes are not enough to improve anemia or reduced blood volume.

1. Intravenous fluid administration may be indicated for severe dehydration.
2. Iron supplementation as directed by a doctor if iron deficient.
3. Blood transfusions may be necessary in cases of significant blood loss or severe anemia.

Regular health monitoring

If you frequently experience symptoms such as prolonged fatigue, pale skin, rapid heartbeat, or dizziness, you should have a complete blood count to determine the cause.

• Blood tests help assess red blood cell count, hemoglobin, and related indices.
• Correctly identifying the cause will help select a more appropriate and safer method for increasing red blood cells.

Part 1: When to seek medical attention for anemia, low blood pressure?

Step 1: Increasing red blood cells: When to see a doctor?

Consult a doctor if low blood volume is suspected

If you notice that you are often tired, dizzy, or have unusual symptoms related to blood circulation, take the initiative to see a doctor early. Hypovolemia can be a sign of an underlying medical condition that requires proper diagnosis and treatment.

• Do not try to increase red blood cells or blood volume on your own without clearly identifying the cause.
• Your doctor may order blood tests and other necessary examinations to assess your overall health.
• Early detection helps prevent dangerous complications and improves treatment effectiveness.

Recognizing signs of low blood volume

Some symptoms may indicate that the body is experiencing insufficient blood circulation or severe dehydration.

• Dry mouth, lips, and mucous membranes.
• Poor skin elasticity; when pinched lightly, the skin takes a long time to return to its normal state.
• Urinating less than usual or dark urine.
• Rapid heart rate, palpitations, or pounding heart.
• Dizziness, lightheadedness when standing up suddenly.
• Prolonged fatigue, reduced ability to concentrate.

Do not be complacent about low blood volume

Many people believe that simply drinking more water can solve this problem. However, in some cases, low blood volume can be related to blood loss, cardiovascular disease, endocrine disorders, or other serious health issues.

• Closely monitor any unusual symptoms of the body.
• Adhere to treatment instructions from medical staff.
• Combine a diet that supports red blood cell production and improves blood circulation when recommended by your doctor.

Beware of hypovolemic shock

If left untreated, low blood volume can progress to hypovolemic shock, a life-threatening medical emergency.

Signs requiring immediate emergency care include:

1. Dizziness or fainting.
2. Cold, pale, and sweaty skin.
3. Rapid or difficult breathing.
4. Very rapid or very weak heartbeat.
5. Confusion, disorientation, or decreased consciousness.

If these symptoms appear, go to the nearest medical facility or call for emergency services immediately for timely treatment.

Step 2: Work with your doctor to safely increase red blood cells

Consult your doctor before trying to increase red blood cells

If you have signs of anemia, reduced blood volume, or want to try to increase red blood cells, the first step should be to see a doctor. This helps accurately identify the cause and choose the appropriate treatment method for your health condition.

• Do not self-medicate, take supplements, or use blood-building products without consultation.
• Each cause of low red blood cells will require a different treatment approach.
• Correct diagnosis from the outset helps avoid unintended risks and complications.

Fully disclose any existing medical conditions

Some underlying medical conditions can affect the ability to apply measures to increase blood volume or supplement nutrients.

• People with diabetes may need to be cautious with solutions or products containing glucose.
• Other metabolic disorders can also alter how the body absorbs and uses nutrients.
• Provide your doctor with information about current medications, medical history, and current symptoms.

Find the true cause of low red blood cells

In many cases, reduced blood volume or a low red blood cell count is not a disease but a sign of another health issue.

Your doctor may order tests and evaluations to identify causes such as:

1. Anemia due to iron, vitamin B12, or folic acid deficiency.
2. Chronic fatigue syndrome.
3. Fibromyalgia.
4. Heart failure or cardiovascular diseases.
5. Internal bleeding or prolonged blood loss.
6. Diseases affecting the bone marrow and red blood cell production process.

Treating the cause to improve red blood cell count long-term

Focusing only on how to increase red blood cells in the blood may yield temporary results if the root cause is not addressed.

• Treating underlying conditions helps the body restore its natural blood-forming ability.
• Combine a diet rich in iron, vitamin B12, and folate as directed by your doctor.
• Regularly monitor blood parameters to assess treatment effectiveness.

When the cause is identified and well-controlled, red blood cell count, blood volume, and circulatory health will generally improve more sustainably.

Step 3: Adhere to guidelines when increasing red blood cells

Always follow your doctor's instructions

When trying to increase red blood cells or improve blood volume, you should follow your doctor's instructions exactly. This is especially important if you have an underlying medical condition or abnormal blood counts.

• Do not arbitrarily change prescribed treatment methods.
• Undergo all necessary tests and follow-up appointments as required.
• Monitor for any unusual symptoms and report them to your doctor promptly.

Do not try to increase red blood cells on your own if you have a blood disorder or metabolic disorder

Some health conditions can make self-treatment dangerous or worsen the disease.

• Individuals with blood disorders need specialized monitoring to determine the cause of anemia.
• Individuals with metabolic disorders, diabetes, or chronic diseases need careful evaluation before supplementing nutrients or using blood-forming medications.
• Self-medicating with supplements can cause side effects or interact with current medications.

Use medication as prescribed if necessary

In some cases, changes in diet and lifestyle are not enough to improve a low red blood cell count or reduced blood volume.

• Your doctor may prescribe medications or specific treatments to help the body produce red blood cells.
• The choice of medication will depend on the cause of anemia and your overall health.
• Do not self-purchase or use blood-forming medications without medical consultation.

Inform your doctor before implementing any measures

Whether changing your diet, supplementing with iron, vitamins, or using functional foods, you should consult your doctor before doing so.

1. Provide information about any medications you are currently taking.
2. Report any underlying medical conditions or history of allergies.
3. Ask for advice on the dosage and duration of use for supplements.
4. Monitor your body's reactions during treatment.

Prioritize safe and sustainable treatment

The goal of increasing red blood cells in the blood is not just to improve test results but also to enhance overall health and prevent long-term complications.

• Combine medical treatment with a scientific diet.
• Maintain a healthy lifestyle and adequate rest.
• Undergo regular health check-ups to evaluate treatment effectiveness and adjust the care plan as needed.

Step 4: Monitor indicators when increasing red blood cells

Regular health checks during the process of increasing red blood cells

When applying measures to increase red blood cells or improve blood volume, you should regularly monitor important health indicators. Although these indicators do not directly measure the amount of blood in the body, they can help assess the effectiveness of the treatment process and detect abnormalities early.

• Record indicators daily or weekly.
• Monitor changes in symptoms such as fatigue, dizziness, or rapid heartbeat.
• Report any unusual signs to your doctor during monitoring.

Monitor heart rate

Heart rate is one of the indicators reflecting blood circulation and the body's oxygen supply capacity.

• Measure your heart rate at the same time each day for consistent results.
• Monitor for unusual rapid heartbeat or prolonged palpitations.
• A stable heart rate can be a sign that the body is adapting better to the recovery process.

Check pulse

Pulse helps assess the activity of the cardiovascular system and blood flow in the body.

• Measure your pulse when your body is at rest.
• Check if your pulse is regular.
• If your pulse is too fast, too slow, or irregular, you should consult a doctor.

Regularly monitor blood pressure

Blood pressure is an important indicator for people with anemia, reduced blood volume, or circulatory disorders.

• Measure blood pressure in the morning or as directed by your doctor.
• Record results to monitor trends over time.
• Abnormally low blood pressure can be related to reduced blood volume or dehydration.

Control blood sugar if you have diabetes

People with diabetes need to pay special attention to blood sugar levels while improving their health and promoting blood production.

1. Check blood sugar according to the treatment schedule.
2. Maintain a diet appropriate for your condition.
3. Inform your doctor if blood sugar increases or decreases abnormally.
4. Do not use supplements containing sugar without consultation.

Combine with blood test monitoring

In addition to vital signs, regular blood tests are the most accurate way to evaluate the effectiveness of increasing red blood cells in the blood.

• Check red blood cell count, hemoglobin, and hematocrit as directed.
• Assess the response to diet or treatment.
• Adjust the healthcare plan based on actual test results.

Regular monitoring of health indicators helps you accurately assess the progress of increasing red blood cells and supports early detection of problems requiring medical intervention.

Step 5: Do cardio to increase red blood cells

Consult your doctor before starting exercise

If you want to increase red blood cells, improve blood volume, or enhance endurance, consult your doctor before starting a new exercise program.

• This is especially important for people with cardiovascular disease, anemia, low blood pressure, or chronic illnesses.
• Your doctor can assess your health status and advise on appropriate exercise intensity.
• Proper exercise helps optimize effectiveness and reduces the risk of injury or overexertion.

Endurance training helps naturally increase blood volume

Studies show that endurance training and cardiovascular exercises can help the body gradually increase blood volume over time. This is considered one of the natural methods to support increasing red blood cells in the blood and improving oxygen transport capacity.

• Enhance blood circulation to organs.
• Support the process of red blood cell production.
• Improve cardiovascular health and overall physical fitness.
• Help the body adapt better to prolonged physical activity.

Prioritize regular cardio exercises

Cardio exercises stimulate the circulatory system and enhance the body's oxygen utilization efficiency.

You can choose:

• Brisk walking.
• Jogging.
• Cycling.
• Swimming.
• Stair climbing.
• Moderate-intensity aerobics.

Choose a form of exercise suitable for your physical condition to maintain it long-term.

Maintain a training schedule of 3–5 sessions per week

To support increasing red blood cells and improving blood volume, consistency is more important than excessively high intensity.

• Exercise 3–5 sessions per week.
• Each session lasts about 30–60 minutes.
• People with good physical fitness can increase training time as guided by an expert.
• Always warm up before and cool down after exercising.

Be persistent for many months to achieve results

Many people give up too soon because they don't see immediate results. In reality, the body needs time to adapt and increase its blood-forming capacity.

1. Red blood cell volume may begin to increase after about 2–4 weeks of regular exercise.
2. Noticeable effects usually appear after 1–2 months or longer.
3. Maintaining long-term exercise helps stabilize the benefits achieved.
4. If exercise is stopped for a long time, improvements in blood volume may gradually decrease.

Combine exercise with an appropriate diet

Exercise will be more effective when combined with a blood-building diet.

• Supplement iron-rich foods such as red meat, seafood, and legumes.
• Increase vitamin B12 and folic acid.
• Drink enough water to support blood circulation.
• Get enough sleep for your body to recover and produce red blood cells more efficiently.

Regular cardio exercise not only helps increase red blood cells and improve blood volume, but also enhances cardiovascular health, endurance, and long-term quality of life.

Part 2: Should I get IV fluids for low blood pressure?

Tip 1: Blood transfusion when necessary

Blood transfusion to compensate for lost blood

In some severe cases, doctors may recommend blood transfusions to quickly restore blood volume in the body. This is a medical method to increase blood volume and improve oxygen delivery to vital organs.

• Blood transfusions are typically performed at hospitals or medical facilities with adequate professional qualifications.
• The transfused blood will directly supplement the components that the body is lacking.
• This method is only applied when indicated by a doctor.

Cases that may require a blood transfusion

Blood transfusions are usually considered when the body has significant blood loss or severe anemia.

Common cases include:

1. Blood loss due to surgery.
2. Severe trauma or accidents causing hemorrhage.
3. Gastrointestinal bleeding or internal bleeding.
4. Severe anemia affecting health and daily activities.
5. Certain blood disorders that reduce the number of red blood cells.

Benefits of blood transfusion

Blood transfusions can rapidly improve symptoms related to decreased blood volume or anemia.

• Helps increase the amount of circulating red blood cells in the body.
• Improves oxygen delivery to tissues and organs.
• Reduces feelings of fatigue, dizziness, and weakness.
• Helps stabilize blood pressure and blood circulation in necessary cases.

Adherence to post-transfusion monitoring

After a blood transfusion, the patient needs to be monitored to ensure the body responds well to the treatment process.

• Perform blood tests as required by the doctor.
• Monitor vital signs such as blood pressure, heart rate, and body temperature.
• Immediately inform medical staff if any unusual symptoms appear.

Do not self-request blood transfusions to increase red blood cells

Although blood transfusions can help quickly increase the number of red blood cells in the blood, this is not a solution for all cases of anemia or decreased blood volume.

• The decision to transfuse blood must be based on test results and clinical evaluation.
• The doctor will weigh the benefits and risks before prescribing.
• Treating the underlying cause of anemia remains an important factor for long-term health.

Blood transfusion is an effective medical intervention in cases of severe blood loss or anemia, helping to restore blood volume and quickly improve health when indicated at the right time.

Tip 2: IV fluids to increase blood volume

Intravenous fluids as prescribed by a doctor

In some cases, doctors may prescribe intravenous fluids to help replenish lost fluids and support increased blood volume. This method is often used when the body is dehydrated or loses fluids due to illness, trauma, or blood loss.

• IV fluids must be administered by qualified medical personnel.
• The type of fluid and the amount used will be adjusted based on the individual's health condition.
• Do not self-administer IV fluids at home without medical indication.

Saline solution effectively rehydrates

One common type of IV fluid is saline solution. This solution helps replenish fluid in the bloodstream, support circulation, and improve conditions of decreased blood volume.

• Helps rehydrate the body when dehydrated.
• Supports blood pressure stabilization in some cases of reduced circulatory volume.
• Improves blood flow to vital organs.

However, saline infusion primarily increases fluid volume in the blood and does not directly increase the number of red blood cells.

Cases that may be indicated for IV fluids

Doctors may consider IV fluids when the patient experiences issues such as:

1. Dehydration due to prolonged diarrhea or vomiting.
2. Fluid loss after surgery or trauma.
3. Decreased blood volume due to blood loss or acute illness.
4. Low blood pressure related to fluid deficiency.
5. Certain medical conditions requiring rapid fluid replacement to stabilize circulation.

Consult your doctor if you suspect reduced blood volume

If you frequently experience symptoms such as dizziness, dry mouth, fatigue, rapid heartbeat, or decreased urination, proactively discuss with your doctor for an accurate assessment.

• Not all cases require IV fluids.
• Identifying the cause helps select the appropriate and safer treatment method.
• Your doctor will decide whether IV fluids are a necessary solution.

Understand the correct role of IV fluids

Many people confuse IV fluids with measures to increase red blood cells. In reality, IV fluids primarily help restore circulatory volume by replenishing water and electrolytes.

• IV fluids temporarily support increased blood volume.
• They do not replace treatments for anemia or increased red blood cell production.
• If the cause is iron deficiency or anemia, the patient may require additional specialized treatment as prescribed by a doctor.

Intravenous fluid administration is an effective supportive method for rehydration and improving blood volume when applied correctly, contributing to faster body recovery and maintaining stable circulatory function.

Tip 3: Iron supplementation to increase red blood cells

Consult your doctor before taking iron supplements

Iron is an important mineral in the production of red blood cells and hemoglobin. However, not everyone needs iron supplementation. Before using any product, you should consult your doctor to determine the cause of anemia or low red blood cells.

• Perform a blood test to assess iron deficiency.
• Identify the cause of anemia before treatment.
• Follow the dosage and duration of use as directed by your doctor.

How does iron help the body produce red blood cells?

Iron is an essential component for creating hemoglobin, a protein in red blood cells responsible for transporting oxygen to organs and tissues throughout the body.

• Supports the increased production of new red blood cells.
• Improves the ability to transport oxygen in the blood.
• Helps reduce feelings of fatigue and weakness due to iron deficiency anemia.
• Supports overall health and physical activity capacity.

Cases that may require iron supplementation

Doctors may consider iron supplementation if test results show that the body is deficient in this mineral.

Individuals at risk of iron deficiency commonly include:

1. People with iron deficiency anemia.
2. Women with prolonged menstruation or heavy blood loss.
3. Pregnant women.
4. People with diets lacking iron-rich foods.
5. People who have lost blood due to surgery, trauma, or gastrointestinal diseases.

Do not self-medicate with iron pills to increase red blood cells

Many people believe that iron supplementation is the fastest way to increase red blood cells, but improper use can negatively affect health.

• Excess iron can accumulate in the body and damage organs.
• Some people are not iron deficient but still suffer from anemia due to other causes.
• Incorrect dosage can cause constipation, nausea, or gastrointestinal discomfort.

Combine nutrition to support iron absorption

In addition to prescribed supplementation, a proper diet can help enhance blood production efficiency.

• Increase consumption of red meat, animal liver, seafood, and legumes.
• Supplement with vitamin C-rich foods like oranges, mandarins, guavas, or kiwis to increase iron absorption.
• Limit drinking tea or coffee immediately after meals as it can reduce iron absorption.

Monitor effectiveness after iron supplementation

Increasing red blood cells in the blood usually takes time and should be monitored with regular tests.

• Recheck hemoglobin levels and red blood cell count at scheduled appointments.
• Monitor the improvement of symptoms such as fatigue, dizziness, or pale skin.
• Adjust the treatment plan if necessary according to your doctor's advice.

Proper iron supplementation can effectively support the process of increasing red blood cells, improving oxygen transport capacity, and contributing to long-term health, but should only be done under the guidance and monitoring of a medical professional.

Tip 4: Red blood cell stimulating drugs

Ask your doctor about red blood cell stimulating drugs

In some cases, doctors may prescribe drugs or growth factors that stimulate the bone marrow to produce more blood cells. This is a specialized treatment for people with anemia due to certain medical conditions.

• Only use with a doctor's prescription and monitoring.
• Not all cases of low red blood cell count require red blood cell stimulating drugs.
• Treatment depends on the cause of anemia and overall health status.

How do growth factors work?

Growth factors are substances that can stimulate the bone marrow to increase the production of blood cells, especially red blood cells.

• Promotes blood formation in the bone marrow.
• Supports increasing the number of circulating red blood cells in the body.
• Improves oxygen delivery to organs and tissues.
• Helps reduce symptoms related to anemia such as fatigue, weakness, and shortness of breath.

What is Erythropoietin (EPO)?

Erythropoietin, commonly known as EPO, is a hormone that plays a role in stimulating the bone marrow to produce red blood cells.

• The body primarily produces EPO in the kidneys.
• Some medications containing synthetic EPO may be used in the treatment of anemia as medically indicated.
• The goal is to support increasing the amount of red blood cells in the blood when the body cannot produce enough natural red blood cells.

Cases where EPO may be considered

Doctors may consider this therapy in specific cases such as:

1. Anemia related to chronic kidney disease.
2. Anemia due to cancer treatment or certain special treatments.
3. Certain disorders affecting red blood cell production.
4. Prolonged anemia that does not respond well to conventional treatments.

Do not self-medicate with red blood cell stimulating drugs

The use of EPO or red blood cell stimulating drugs needs to be strictly controlled to ensure safety.

• Do not self-purchase or use without a doctor's prescription.
• Regular monitoring of blood parameters is necessary during treatment.
• Dosage and duration of use must be individualized for each patient.
• Improper use can increase the risk of cardiovascular complications or other health problems.

Regular monitoring of treatment effectiveness

During the use of red blood cell stimulating drugs, the doctor will usually check relevant indicators to evaluate treatment effectiveness.

• Monitor red blood cell count and hemoglobin concentration.
• Check blood pressure and cardiovascular health.
• Assess the degree of improvement in anemia symptoms.
• Adjust the treatment regimen when necessary.

Red blood cell stimulating drugs like EPO can significantly improve anemia and support red blood cell increase, but should only be used under strict medical supervision to ensure long-term effectiveness and safety.

References

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Content edited by: Leigh Kennedy Ly.

Information consulted and verified by expert: Ava Anderson.