Abdominal swelling, Diarrhea: 18 Possible Causes
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What causes abdominal swelling and diarrhea? 18 possible conditions

See a list of possible causes in order from the most common to the least.

1

Lactose Intolerance

Lactose intolerance is the inability to break down lactose, a natural sugar. Learn about signs and treatment.

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2

Food Allergy Basics

Food allergies are overblown responses by the immune system to foods that aren't typically harmful - like eggs and peanuts. Continue reading and learn more about food allergies, and how to prevent or treat sever...

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3

Malabsorption Syndrome

Malabsorption syndrome occurs when the intestine's ability to absorb important nutrients is compromised. Certain conditions, such as Celiac disease, cystic fibrosis, and dairy allergies may lead to malabsorption.

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4

Celiac Disease (Gluten Intolerance)

Celiac disease is a digestive disorder caused by an immune reaction to gluten. Symptoms vary but can include arthritis, fatigue, and abdominal symptoms.

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5

Irritable Bowel Syndrome

Irritable bowel syndrome (IBS) is a chronic condition that affects the large intestine and causes many uncomfortable symptoms, such as bloating, gas, cramping, diarrhea, constipation, and pain.

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6

Appendicitis

This condition is considered a medical emergency. Urgent care may be required.

Appendicitis is inflammation of the appendix, which can be fatal if left untreated. The telltale sign is pain that usually starts as mild cramping, especially on the right side, and becomes more severe over time.

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7

PMS (Premenstrual Syndrome)

PMS symptoms start five to 11 days before menstruation and typically go away once menstruation begins. The cause of PMS is unknown.

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8

Giardiasis

Giardiasis is an infection in your small intestine caused by microscopic parasites called giardia.

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9

Colorectal (Colon) Cancer

Colorectal cancer is a cancer that starts in the rectum or colon, located in the lower portion of the digestive system.

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10

Intestinal Obstruction

If your small or large intestine becomes blocked, fluid and digested food cannot move through. This can cause bloating, stomach cramps, and burping.

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11

Necrotizing Enterocolitis

This condition is considered a medical emergency. Urgent care may be required.

Necrotizing enterocolitis occurs when the intestinal tissue becomes damaged and dies. Learn about its symptoms, causes, and how it's diagnosed.

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12

Systemic Sclerosis (Scleroderma)

Scleroderma is an autoimmune disorder that is characterized by changes in the texture and appearance of the skin due to an increase in collagen. It can affect blood vessels and muscles, and a number of vital organs.

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13

Kwashiorkor

Kwashiorkor is a serious form of malnutrition caused by a lack of protein. Learn how to spot this condition and how it can be prevented.

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14

Pancreatic Cancer

Pancreatic cancer is one of the most deadly forms of cancer and is often difficult to detect. Learn more about symptoms and treatments.

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15

Neuroblastoma

Neuroblastoma is a rare cancer that develops in tissues of the sympathetic nervous system (the system that carries brain signals to the body). Early symptoms of the cancer can include fever, diarrhea, and others.

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16

Hirschsprung Disease

Hirschsprung disease is a blockage that occurs in the colon in about one of every 5,000 births. The cause is unknown, but tends to affect more boys and those with Down syndrome or another inherited condition.

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17

Autonomic Neuropathy

Damage to the nerves that help your organs to function can cause a condition called autonomic neuropathy (AN) and is associated with other conditions.

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18

Staphylococcus Aureus Food Poisoning

According to the Centers for Disease Control and Prevention (CDC), Staphylococcus aureus is a common bacterium found in the nose and on the skin of about 25 percent of healthy people and animals. It is a common cause o...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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