Abdominal pain is a pain that occurs between the chest and pelvic regions. Abdominal pain can be cramps, achy, dull, intermittent or sharp. It’s also called a stomachache.

Inflammation or diseases that affect the organs in the abdomen can cause abdominal pain. Major organs located in the abdomen include:

intestines (small and large)


appendix (a part of the large intestine)






Viral, bacterial, or parasitic infections that affect the stomach and intestines may also cause significant abdominal pain.

What causes abdominal pain?

It can be caused by many conditions. However, the main causes are infection, abnormal growths, inflammation, obstruction (blockage), and intestinal disorders.

Infections in the throat, intestines, and blood can cause bacteria to enter your digestive tract, resulting in abdominal pain. These infections may also cause changes in digestion, such as diarrhea or constipation.

Cramps associated with menstruation are also a potential source of lower abdominal pain, but more commonly these are known to cause pelvic pain.

Other common causes of abdominal pain include:



gastroenteritis (stomach flu)

acid reflux (when stomach contents leak backward into the esophagus, causing heartburn and other symptoms)



Diseases that affect the digestive system can also cause chronic abdominal pain. The most common are:

gastroesophageal reflux disease (GERD)

irritable bowel syndrome or spastic colon (a disorder that causes abdominal pain, cramping, and changes in bowel movements)

Crohn’s disease (an inflammatory bowel disease)

lactose intolerance (the inability to digest lactose, the sugar found in milk and milk products)

Causes of severe abdominal pain include:

organ rupture or near-rupture (such as a burst appendix, or appendicitis)

gallbladder stones (known as gallstones)

kidney stones

kidney infection

Types of abdominal pain

Abdominal pain can be described as localized, cramp-like, or colicky.

Localized pain is limited to one area of the abdomen. This type of pain is often caused by problems in a particular organ. The most common cause of localized pain is stomach ulcers (open sores on the inner lining of the stomach).

Cramp-like pain may be associated with diarrhea, constipation, bloating, or flatulence. In women, it can be associated with menstruation, miscarriage, or complications in the female reproductive organs. This pain comes and goes, and may completely subside on its own without treatment.

Colicky pain is a symptom of more severe conditions, such as gallstones or kidney stones. This pain occurs suddenly and may feel like a severe muscle spasm.

Location of pain within the abdomen

The location of the pain within the abdomen may be a clue as to its cause.

Pain that is generalized throughout the abdomen (not in one specific area) may indicate:

appendicitis (inflammation of the appendix)

Crohn’s disease

traumatic injury

irritable bowel syndrome

urinary tract infection

the flu

Pain that is focused in the lower abdomen may indicate:


intestinal obstruction

ectopic pregnancy (a pregnancy that occurs outside the womb)

In women, pain in the reproductive organs of the lower abdomen can be caused by:

severe menstrual pain (called dysmenorrhea)

ovarian cysts




pelvic inflammatory disease

ectopic pregnancy

Upper abdominal pain may be caused by:


heart attack

hepatitis (liver inflammation)


Pain in the center of the abdomen might be from:




uremia (buildup of waste products in your blood)

Lower left abdominal pain may be caused by:

Crohn’s disease


kidney infection

ovarian cysts


Upper left abdominal pain is sometimes caused by:

enlarged spleen

fecal impaction (hardened stool that can’t be eliminated)


kidney infection

heart attack


Causes of lower right abdominal pain include:


hernia (when an organ protrudes through a weak spot in the abdominal muscles)

kidney infection



Upper right abdominal painmay be from:





When to see the doctor

Mild abdominal pain may go away without treatment. However, in some cases, abdominal pain may warrant a trip to the doctor.

You should seek immediate medical care if the pain is so severe that you can’t sit still or need to curl into a ball to get comfortable, or if you have any of the following:

bloody stools

high fever (greater than 101°F)

vomiting up blood (called hematemesis)

persistent nausea or vomiting

yellowing of the skin or eyes

swelling or severe tenderness of the abdomen

difficulty breathing

Make an appointment with your doctor if you experience any of the following symptoms:

abdominal pain that lasts longer than 24 hours

prolonged constipation


a burning sensation when you urinate


loss of appetite

unexplained weight loss

Call your doctor if you’re pregnant or breastfeeding and you experience abdominal pain.

How is the cause of abdominal pain diagnosed?

The cause of abdominal pain can be diagnosed through a series of tests. Before ordering tests, your doctor will do a physical examination. This includes gently pressing down on various areas of your abdomen to check for tenderness and swelling.

This information, combined with the severity of the pain and its location within the abdomen, will help your doctor determine which tests to order.

Imaging tests, such as MRI scans, ultrasounds, and X-rays, are used to view organs, tissues, and other structures in the abdomen in detail. These tests can help diagnose tumors, fractures, ruptures, and inflammation.

Other tests include:

colonoscopy (to look inside the colon and intestines)

endoscopy (to detect inflammation and abnormalities in the esophagus and stomach)

upper GI (a special X-ray test that uses contrast dye to check for the presence of growths, ulcers, inflammation, blockages, and other abnormalities in the stomach)

Blood, urine, and stool samples may also be collected to look for evidence of bacterial, viral, and parasitic infections.

How can I prevent abdominal pain?

Not all forms of abdominal pain are preventable. However, you can minimize the risk of developing abdominal pain by doing the following:

Eat a healthy diet.

Drink water frequently.

Exercise regularly.

Eat smaller meals.

If you have an intestinal disorder, such as Crohn’s disease, follow the diet your doctor has given you to minimize discomfort. If you have GERD, don’t eat within two hours of bedtime.

Lying down too soon after eating may cause heartburn and abdominal pain. Try waiting at least two hours after eating before lying down.


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