Pancreatitis

Causes

• Gallstones: The most common cause of acute pancreatitis — a stone passing out of the gallbladder can block the pancreatic duct where it joins the bile duct.
• Alcohol: Heavy drinking is the other leading cause of acute attacks and the most common cause of chronic pancreatitis; risk rises with the amount and duration of drinking.
• High triglycerides: Severely elevated levels, as seen in poorly controlled hypertriglyceridemia, can trigger acute pancreatitis.
• Medications and procedures: Certain drugs and ERCP (a bile-duct procedure) occasionally cause pancreatitis.
• Other causes: High calcium levels, genetic mutations, autoimmune pancreatitis, and smoking; in a minority of cases no cause is found.

Symptoms

• Severe upper abdominal pain: Steady, boring pain in the upper abdomen that often radiates straight through to the back and may ease slightly when leaning forward.
• Nausea and vomiting: Usually persistent, with inability to keep food down.
• Fever and a rapid pulse: The abdomen is often tender and distended.

Diagnosis

Treatment

• Acute pancreatitis: Treated in the hospital with generous intravenous fluids, pain and nausea control, and early resumption of eating as tolerated. Most mild cases settle within days, while severe cases with organ involvement are managed in intensive care.
• Treating the cause: When gallstones are responsible, gallbladder removal — often during the same admission — prevents repeat attacks; a stone stuck in the bile duct may need endoscopic removal. Triglyceride-induced pancreatitis is managed by aggressively lowering triglycerides with diet and medication.
• Chronic pancreatitis: Complete abstinence from alcohol and smoking is essential to slow damage. Pancreatic enzyme replacement capsules taken with meals improve digestion and reduce oily stools, smaller low-fat meals help symptoms, and pain is managed in a stepwise fashion. Because the insulin-producing cells can fail over time, blood sugar is monitored and diabetes is treated when it develops.

When to Seek Immediate Care

After the Attack: Preventing the Next One

Most people admitted with acute pancreatitis go home within a few days feeling largely recovered, and the weeks that follow decide whether it happens again. The cause is usually treatable, and the second attack is often the one that does lasting damage, so the follow-up matters more than the hospital stay.

Gallstones: the gallbladder comes out sooner rather than later

After a mild attack caused by gallstones, the gallbladder is best removed during the same admission or within a couple of weeks, because the risk of a repeat attack while waiting is high. After a severe attack, surgery waits until the inflammation and any fluid collections have settled. A stone still lodged in the bile duct, signaled by jaundice or persistently abnormal liver tests, is removed endoscopically first. Our gallbladder attacks article explains what to watch for in the meantime.

Alcohol, smoking, and the triglyceride number

Stopping alcohol completely is the single most effective step after an alcohol-related attack, and moderation is not enough once the pancreas has been injured. Medications such as naltrexone or acamprosate make abstinence more achievable for people with alcohol use disorder; our medications for alcohol use disorder article covers them. Smoking independently accelerates the progression to chronic pancreatitis, and varenicline roughly triples the odds of quitting. When hypertriglyceridemia was the trigger, the level is rechecked after the attack and driven well below the range that provokes pancreatitis with a low-fat diet, diabetes control, and triglyceride-lowering medication, usually for life.

Medications and the first weeks at home

Any medication started shortly before the attack is reviewed, and GLP-1 based drugs such as semaglutide are generally avoided afterward because pancreatitis has been reported with them. Eating resumes as soon as it is tolerated, with small, low-fat meals; prolonged fasting slows recovery. Blood sugar is checked in the months after any significant attack, since damage to the insulin-producing cells can produce diabetes that behaves differently from the usual type, with more swings toward low glucose.

What it is mistaken for

Steady upper abdominal pain that bores through to the back can also come from a peptic ulcer, a gallbladder attack without pancreatitis, or, particularly in older adults and people with diabetes, a heart attack presenting as indigestion. A lipase level and an electrocardiogram separate them, which is why the pain is evaluated the same day rather than treated with antacids.

Living with chronic pancreatitis

Enzyme capsules only work when taken with the first bites of every meal and snack, and a dose that leaves stools oily is too low. Fat-soluble vitamin levels and bone density are checked periodically, because malabsorption makes osteoporosis common. Chronic pancreatitis also raises the long-term risk of pancreatic cancer, so new weight loss, jaundice, or a change in pain pattern prompts imaging rather than reassurance. Our gastrointestinal team coordinates enzyme dosing, nutrition, and surveillance. The NIDDK and MedlinePlus publish patient guidance on both forms.

If you have been discharged after pancreatitis and the cause has not been addressed, schedule a visit before the next attack decides the timing for you.