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12 Causes of Stomach Pain

Man with stomachache

4. Appendicitis

An inflammation of the appendix is known as appendicitis. The condition may be acute or chronic and can occur at any time. It is believed that an obstruction of the appendix, either partial or complete, causes the condition and triggers the associated stomach discomfort.

The obstruction may result from a buildup of fecal matter, tumors, worms or even trauma. Once obstructed, bacteria can start to multiply in the appendix which can in turn lead to the formation of pus. This increased pressure often exhibits as severe pain and if left untreated, may even result in the appendix rupturing.

5. Food poisoning

Food poisoning happens when an individual consumes food that has been contaminated with bacteria, viruses or parasites. Symptoms caused by the infection typically include abdominal discomfort including stomach pain, cramping, diarrhea, nausea, vomiting, and loss of appetite and perhaps a mild fever with an overall sense of malaise.

While anyone can get food poisoning, individuals with a suppressed immune system or those with an autoimmune disease may be more at risk. Also elderly individuals are more susceptible since their immune systems may not respond quickly or efficiently enough to the infection.

6. Lactose intolerance

Lactose intolerance is a condition when the body cannot break down a type of natural sugar known as lactose. An individual is considered lactose intolerant when their small intestine does not produce enough of the enzyme lactase needed to digest and break down lactose.

Lactose is typically found in dairy products and in the case of lactose intolerant individuals, the undigested lactose moves into the large intestine. The interaction of bacteria present in the large intestine with the undigested lactose causes uncomfortable digestive symptoms including gas, bloating, diarrhea and overall stomach discomfort.