Typical Signs of Acute Pancreatitis: Where Does the Pain Occur and 4 Ways to Recognize it Early

Severe abdominal pain is one of the most common reasons patients are admitted to the emergency room. According to medical statistics, acute pancreatitis is a common cause of acute abdominal pain and can rapidly progress to multiple organ failure if not diagnosed and treated promptly. Alarmingly, the symptoms of acute pancreatitis are easily confused with stomach pain, cholecystitis, gallstones, or appendicitis, leading many people to be complacent and miss the "golden time" for treatment.

In this article, Tiptory will help you clearly recognize the symptoms of acute pancreatitis, distinguishing acute pancreatitis from diseases with similar manifestations based on symptoms, clinical signs, and necessary tests. As a result, you will know when to go to the hospital immediately to reduce the risk of dangerous complications and proactively protect your health.

Part 1: How to recognize symptoms of acute pancreatitis through pain

Method 1: Accurately describe the pain

Describe the exact location and nature of the pain to the doctor

• During the examination, clearly state the symptoms of acute pancreatitis you are experiencing, especially the location, severity, and time of onset of the pain. This information helps the doctor differentiate acute pancreatitis from diseases with similar manifestations such as cholecystitis, gallstones, peptic ulcers, or myocardial infarction.

• The signs of acute pancreatitis are often sudden, severe, and prolonged pain, unlike common abdominal pains that are transient or quickly subside after rest.

Pain radiating to the back is a typical sign

• One of the characteristic signs of acute pancreatitis is pain that starts in the upper abdomen and then radiates to the back. This is a common manifestation because the pancreas is located deep behind the stomach and close to the spine.

• The pain can be continuous, dull, or severe, making it difficult for patients to find a position that relieves the pain. If this symptom appears accompanied by nausea or vomiting, you should go to a medical facility as soon as possible.

Pain concentrated in the epigastric region

• Acute pancreatitis often causes pain in the epigastric region, which is the area in the upper middle abdomen, just below the sternum. Some people feel the pain spread to the left side or throughout the upper abdomen.

• Describe the exact location of the pain to the doctor instead of just saying "abdominal pain," as this is crucial information for guiding diagnosis and ordering necessary tests.

Pain worsens after eating

• If the pain becomes more severe after a meal, especially after eating fatty foods or drinking alcohol, this could be a symptom of acute pancreatitis that needs attention.

• After eating, the pancreas has to secrete more digestive enzymes, which worsens the inflammation and significantly increases the pain. If you experience this, do not self-medicate with painkillers at home; instead, seek prompt medical evaluation and treatment.

Method 2: Evaluate the timing of pain onset

Monitor the time the pain begins

• One way to recognize acute pancreatitis is to determine when the pain appeared and how it progressed. As its name suggests, acute pancreatitis often starts suddenly, without warning signs.

• The pain usually appears quickly, lasts continuously, and tends to increase in intensity rather than spontaneously subsiding. Many people describe the pain as a stabbing or squeezing sensation in the upper abdomen.

Note if the pain worsens after eating

• A typical symptom of acute pancreatitis is pain that becomes more severe after meals, especially after eating fatty foods or drinking alcohol.

• If the pain lasts for several hours, does not subside with rest or position changes, you should go to a medical facility for examination and necessary tests.

Differentiate from other causes of abdominal pain

• If the pain appears gradually over many days or weeks, or is just a persistent dull ache, the cause may be related to other conditions such as peptic ulcers, gastroesophageal reflux disease, or biliary tract disease.

• However, relying solely on symptoms is not enough to diagnose the disease. The doctor will combine the signs of acute pancreatitis, clinical examination, and imaging tests, as well as blood tests, to make an accurate diagnosis.

Distinguish between acute and chronic pancreatitis

• Acute pancreatitis is an inflammatory condition that occurs suddenly and is often associated with the first episodes of the disease. If treated correctly, the pancreas can recover completely or almost completely.

• When the inflammation recurs multiple times or persists, the disease can progress to chronic pancreatitis. At this point, the pancreas is permanently damaged, increasing the risk of impaired digestive function and affecting insulin production. Therefore, early recognition of the signs of acute pancreatitis and timely treatment are crucial factors in limiting long-term complications.

Method 3: Pay attention to nausea and vomiting

Inform the doctor fully about accompanying symptoms

• During your visit, let the doctor know if you experience nausea, vomiting, or other digestive disorders along with abdominal pain. These are common symptoms of acute pancreatitis and are valuable in supporting the diagnosis.

• In addition to the time of onset, you should also describe the frequency of vomiting, the amount of food vomited, and whether symptoms worsen after eating.

Nausea and vomiting are common signs of acute pancreatitis

• Many people with acute pancreatitis experience nausea and vomiting immediately after the onset of abdominal pain. These symptoms often do not completely subside after vomiting and can persist if the inflammation is not controlled.

• However, relying solely on nausea or vomiting is not enough to confirm acute pancreatitis, as these are also symptoms of many other conditions.

Differentiate from other digestive diseases

• Nausea and vomiting can occur in many conditions such as food poisoning, viral gastroenteritis, digestive disorders, or biliary tract diseases.

• Therefore, the doctor will evaluate the combination of signs of acute pancreatitis, the location and nature of the pain, medical history, and blood tests and imaging to determine the exact cause.

Monitor for diarrhea after fatty meals

• Some people with acute pancreatitis may experience diarrhea, especially after eating fatty or oily foods.

• This is because the inflamed pancreas reduces its ability to secrete digestive enzymes, causing fats to not be absorbed effectively. When this condition persists, patients may experience symptoms such as loose stools, fatty stools, indigestion, and bloating after eating.

• If diarrhea is accompanied by severe abdominal pain, nausea, or prolonged vomiting, seek medical attention early for evaluation and timely treatment to limit the risk of complications from acute pancreatitis.

Method 4: Share your alcohol consumption history

Be honest about your drinking habits

• During your examination, tell your doctor about the frequency of your alcohol consumption, the average amount consumed, and how long you've maintained this habit. This information is very important for assessing the risk of acute pancreatitis and identifying the cause of the disease.

• Providing complete information helps the doctor choose the right diagnostic approach, order tests, and develop a more suitable treatment plan.

Alcohol is a leading risk factor

• Heavy alcohol consumption over a long period is one of the common causes of acute pancreatitis. Alcohol can damage pancreatic cells, trigger an inflammatory response, and cause digestive enzymes to activate within the pancreas instead of in the small intestine.

• The risk of developing the disease usually increases with the amount of alcohol consumed and the duration of use. Therefore, reducing or stopping alcohol consumption is an important measure to help reduce the risk of recurrent acute pancreatitis.

Inform if you have a history of gallstones

• Besides alcohol, gallstones are also one of the common causes of acute pancreatitis. If you have been diagnosed with gallstones or have had biliary colic attacks in the past, inform your doctor.

• Gallstones can migrate and block the pancreatic duct or common bile duct, preventing normal flow of digestive fluids and causing pancreatitis.

History of gallstones increases recurrence risk

• People with a history of gallstones are at risk of forming new stones if risk factors are not controlled. When stones recur, the risk of causing symptoms of acute pancreatitis also increases.

• If you have a history of gallstones and experience symptoms of acute pancreatitis such as severe upper abdominal pain radiating to the back, nausea, or prolonged vomiting, go to a medical facility immediately for diagnosis and timely treatment to avoid dangerous complications.

Part 2: Accurate diagnostic tests for acute pancreatitis

Test 1: Blood test

Blood tests help detect acute pancreatitis early

• When you arrive at the hospital with severe abdominal pain, the doctor often orders blood tests to find the cause. This is one of the fast and effective methods to aid in diagnosing acute pancreatitis.

• If the results show elevated pancreatic enzymes, the doctor will suspect that the pancreas is damaged or inflamed and will order further specialized tests to confirm the diagnosis.

Amylase and lipase levels

• The two most important tests in diagnosing acute pancreatitis are measuring amylase and lipase enzyme levels in the blood.

• Elevated levels of amylase and lipase are common signs of acute pancreatitis, reflecting the leakage of digestive enzymes into the bloodstream when the pancreas is inflamed.

• Among them, lipase is considered to have higher specificity for pancreatic disease, as amylase can also be elevated in other conditions such as salivary gland inflammation, gastric diseases, or some hepatobiliary diseases.

Evaluate results in conjunction with symptoms

• Although elevated pancreatic enzymes are an important indicator, the doctor will not rely solely on one test to conclude. The diagnosis of acute pancreatitis requires a combination of symptoms of acute pancreatitis, clinical examination, and imaging methods such as ultrasound or computed tomography (CT).

• This comprehensive approach helps differentiate acute pancreatitis from other causes of acute abdominal pain and select the appropriate treatment method.

Check indicators reflecting inflammation levels

• The doctor may also order a C-reactive protein (CRP) test to assess the level of inflammation in the body. Elevated CRP levels are often associated with severe inflammation and can help monitor the progression of acute pancreatitis.

• In some cases, inflammatory mediators such as interleukins may also be evaluated at specialized medical facilities to help prognosticate the severity of the disease. However, this is not a routine test in all suspected cases of acute pancreatitis.

Test 2: Endoscopic ultrasound of the pancreas

Endoscopic ultrasound provides clearer views of the pancreas

• If examination and test results are insufficient to determine the cause, the doctor may order an endoscopic ultrasound (EUS). This technique combines endoscopy and ultrasound to create detailed images of the pancreas and surrounding organs.

• During the procedure, a flexible endoscope with an ultrasound probe is advanced through the esophagus, stomach, and into the first part of the small intestine. Because the probe is located close to the pancreas, the images obtained have higher resolution than conventional abdominal ultrasound.

Assists in finding the cause of acute pancreatitis

• Endoscopic ultrasound helps the doctor detect abnormalities such as small gallstones, bile duct obstruction, tumors, pancreatic cysts, or lesions that are difficult to observe with other imaging methods.

• This information is valuable in determining the cause of acute pancreatitis, thereby selecting appropriate treatment methods and reducing the risk of disease recurrence.

Differentiate from other gastrointestinal diseases

• In addition to evaluating the pancreas, endoscopic ultrasound also examines the esophagus, stomach, and duodenum. This helps the doctor rule out other causes of upper abdominal pain such as peptic ulcer disease, biliary tract disease, or certain lesions in the upper gastrointestinal tract.

• Accurate differentiation of the cause of abdominal pain helps avoid misdiagnosis of acute pancreatitis with diseases having similar symptoms of acute pancreatitis.

Not everyone needs an endoscopic ultrasound

• Endoscopic ultrasound is usually indicated when the cause of acute pancreatitis is unclear after clinical examination, blood tests, and ultrasound or CT scans. This is not a first-line test for all cases.

• The doctor will consider the indication based on the signs of acute pancreatitis, medical history, test results, and the individual's health status to choose the most appropriate diagnostic method.

Test 3: Abdominal CT scan

CT scan helps evaluate pancreatic damage

• When a patient has severe abdominal pain or suspected acute pancreatitis, the doctor may order a computed tomography (CT) scan of the abdomen to observe the organs in the abdominal cavity in detail.

• This method produces high-resolution images, helping the doctor assess the pancreas, bile ducts, liver, gallbladder, and surrounding organs, thereby more accurately identifying the cause of abdominal pain.

Detects signs of acute pancreatitis and complications

• CT images can show signs of acute pancreatitis such as a swollen, edematous pancreas, inflamed peripancreatic fat, or fluid accumulation around the pancreas.

• In severe cases, CT can also help detect complications such as pancreatic necrosis, abscess, pseudocyst, or bleeding, thereby helping the doctor assess the severity of the disease and develop an appropriate treatment plan.

Supports finding the cause of the disease

• CT scans can also detect gallstones or abnormalities in the bile ducts, which are common causes of acute pancreatitis.

• In addition, this method helps rule out many other diseases with similar manifestations such as cholecystitis, bowel obstruction, appendicitis, or abdominal tumors.

CT scan procedure is quick

• During a CT scan, the patient lies on a scanning table and is moved through a ring-shaped scanner. The scanning process usually takes only a few minutes and is painless.

• In some cases, the doctor may order an injection of contrast medium to better visualize blood vessels and pancreatic lesions. Patients should inform if they have a history of contrast medium allergy or kidney disease before the procedure.

• Combined with symptoms of acute pancreatitis, blood tests, and other imaging methods, CT scan results help improve the accuracy of diagnosis and treatment of acute pancreatitis.

Part 3: Acute Pancreatitis Treatment Protocol and Emergency Management

Step 1: Inpatient Treatment When Necessary

Stay in the hospital for monitoring and treatment

• After being diagnosed with acute pancreatitis, many patients require inpatient treatment for close monitoring by doctors and timely intervention if complications arise.

• Hospitalization may only last a few days for mild cases but can be longer if the inflammation is severe or if other organs are damaged.

Pain control and fluid replacement are top priorities

• Initial treatment for acute pancreatitis focuses on intravenous fluid administration to rehydrate, maintain circulation, and ensure normal organ function.

• Concurrently, doctors will use appropriate pain medication to control the pain, making the patient more comfortable and limiting the impact of acute pancreatitis symptoms on daily life.

Restrict eating and drinking during the acute phase

• In the initial stage, some patients may temporarily stop eating or have their diet adjusted depending on the severity of the illness. The goal is to reduce the workload of the pancreas while the inflammation is being controlled.

• When signs of acute pancreatitis improve and pain subsides, doctors will guide patients to gradually resume eating with an appropriate diet, prioritizing easily digestible and low-fat foods.

Monitoring to prevent complications

• Throughout the treatment period, doctors will monitor vital signs, conduct blood tests, and may perform additional imaging diagnostics if necessary to assess the progression of acute pancreatitis.

• If the cause of the illness is gallstones, alcohol, or other factors, patients will also receive counseling on treating the underlying cause and lifestyle changes to reduce the risk of recurrence after discharge.

Step 2: Dietary Adjustments During Treatment

Temporarily stop eating and drinking as directed by your doctor

• In the initial phase of acute pancreatitis, doctors may ask the patient to temporarily stop eating and drinking for a period, depending on the severity of the illness and individual tolerance.

• This helps reduce the stimulation of the pancreas to secrete digestive enzymes, allowing the organ to recover and contributing to the improvement of acute pancreatitis symptoms.

• Patients should not attempt to eat or drink again without guidance from medical professionals.

Gradual resumption of eating and drinking

• When signs of acute pancreatitis improve, pain subsides, and digestive function gradually stabilizes, doctors will guide a step-by-step return to eating and drinking.

• Typically, patients will:

  • Start with plain water or clear, easily digestible liquids.

  • Transition to soft, bland, low-fat foods.

  • Gradually increase food quantity and variety as the pancreas recovers well.

• Returning to a normal diet should be done slowly to avoid overworking the pancreas.

Nutritional support may be needed in severe cases

• For severe cases of acute pancreatitis or if oral intake is impossible for an extended period, doctors may prescribe tube feeding to ensure the body receives sufficient energy and necessary nutrients.

• The form of nutritional support will be chosen based on the clinical condition and the functionality of the digestive system.

Intravenous fluids to maintain hydration and energy

• During the period of restricted eating and drinking, patients often receive intravenous fluids to rehydrate, maintain circulation, and prevent dehydration.

• Depending on the case, the intravenous solution may include glucose and electrolytes to provide basic energy to the body during the treatment of acute pancreatitis.

• Adequate fluid administration is an important part of the treatment protocol, helping support recovery and reduce the risk of complications from acute pancreatitis.

Step 3: Proper Use of Pain Medication

Use pain medication as directed by your doctor

• Severe abdominal pain is one of the most common symptoms of acute pancreatitis. Therefore, pain control is an important goal in the treatment process.

• Doctors will choose the appropriate type and dosage of medication based on the pain level, health status, and treatment response of each patient.

Strong pain medication may be needed in severe cases

• If acute pancreatitis causes significant or prolonged pain, doctors may prescribe strong pain relievers, including opioid-class drugs for a short period and under close supervision in the hospital.

• The use of these medications helps control pain effectively, allowing the patient to rest and supporting the recovery process.

Continue pain control after discharge

• When signs of acute pancreatitis have improved and the patient is ready for discharge, pain usually significantly subsides. If mild pain persists, doctors may advise using over-the-counter pain relievers or appropriate prescription medications for a short period.

• Patients need to take medication at the correct dose, at the correct time, and follow up as scheduled to assess treatment effectiveness.

Do not self-medicate or change medication

• Do not self-increase dosage, prolong medication use, or use pain relievers without a doctor's prescription, as some medications can cause side effects or may not be suitable for the condition.

• If the pain becomes increasingly severe, accompanied by fever, severe vomiting, shortness of breath, or if other signs of acute pancreatitis worsen, seek immediate medical attention for assessment and timely intervention.

Step 4: Treating the Underlying Cause

Treat the cause to prevent recurrence

• After controlling acute pancreatitis symptoms and stabilizing the patient's condition, the next step is to identify the underlying cause of the illness.

• Treating the root cause not only helps acute pancreatitis recover better but also reduces the risk of recurrence and limits long-term complications.

Address gallstones if they are the cause

• Gallstones are one of the common causes of acute pancreatitis. When gallstones block the bile duct or pancreatic duct, digestive fluids cannot flow normally, leading to inflammation.

• Depending on the case, doctors may recommend:

  • Cholecystectomy (gallbladder removal) to eliminate the source of stone formation.

  • Bile duct stone removal using appropriate interventional techniques.

  • Antibiotics if there are signs of bile duct infection or related complications.

Treating bile duct obstruction

• If acute pancreatitis is caused by narrowing or obstruction of the bile duct, doctors may perform endoscopic retrograde cholangiopancreatography (ERCP) to remove stones, widen the bile duct, or place a stent if necessary.

• In cases of severe pancreatic damage such as necrosis or pancreatic tissue infection, patients may require surgical intervention or drainage procedures after the acute inflammation has been controlled.

Treating alcohol addiction

• Chronic heavy alcohol consumption is a leading risk factor for acute pancreatitis and increases the likelihood of disease recurrence.

• If alcohol is the cause, patients should completely stop consuming it and adhere to the treatment plan guided by their doctor. In cases of alcohol dependence, doctors may recommend addiction recovery programs, psychological counseling, or specialized treatment to support long-term sobriety.

Post-treatment monitoring

• After treating the underlying cause, patients need regular follow-up appointments to assess pancreatic recovery and detect early signs of recurrent acute pancreatitis.

• Additionally, maintaining a low-fat diet, limiting alcohol, controlling weight, and effectively managing biliary diseases will help reduce the risk of future acute pancreatitis symptoms.

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Content edited by: Rene Lee Nguyen.

Information consulted and verified by expert: Emily Johnson.