Common bowel disorders include constipation, irritable bowel syndrome, both internal and external hemorrhoids, diverticulosis and diverticulitis, says Cleveland Clinic. Other bowel disorders include colon cancer and colon polyps, anal fissures and anal fistulas.
Constipation means difficult bowel movements or bowel movements that are more infrequent than is considered normal, says Cleveland Clinic. The feces may be hard, and the person may strain to the point that hemorrhoids or anal fissures develop.
In irritable bowel syndrome, or IBS, the colon spasms more than is normal and can lead to cramps, gas, bloating and constipation that alternates with diarrhea, according to Cleveland Clinic. It is a chronic condition that requires lifestyle adjustments, but it doesn't put a person at higher risk for colon cancer, according to Mayo Clinic.
Diverticula are little pouches that appear on and in the walls of the large intestine, according to the National Institute of Diabetes and Digestive and Kidney Diseases. If a person simply has diverticula, the condition is called diverticulosis. The person may be asymptomatic or may have cramping, bloating, diarrhea or constipation.
When the diverticula become inflamed and start to bleed, the person has diverticulitis, according to the National Institute of Diabetes and Digestive and Kidney Diseases. Symptoms are pain, fever, chills and altered bowel habits.