One symptom of constipation is infrequent bowel movements where a person strains to eliminate stool, according to WebMD. The person might also have the feeling that he hasn't evacuated his bowels completely. More »

Constipated dogs have a hard time defecating and show signs of physical distress. They experience lack of appetite, lethargy and vomiting when constipation persists, reports PetMD. Their stools are unusually small, and t... More »

Chronic constipation is the lasting, infrequent or difficult passage of bowels, states Mayo Clinic. A person who has fewer than three bowel movements in a week has chronic constipation. The condition may cause straining ... More »

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Symptoms of irritable bowel syndrome include bloating, excess gas, changes in the patterns of bowel movements, pain in the lower abdomen and mucus in the stool, according to WebMD. Bowel movement pattern changes associat... More »

Changes in bowel movements, such as diarrhea or constipation, that last more than a few days are symptoms of bowel cancer. Narrow, thin stools; rectal bleeding; dark stools or bloody stools; cramping and pain in the abdo... More »

According to Mayo Clinic, fiber helps to normalize bowel movements by softening stool while increasing its weight and size, making it easier to pass and reducing the risk of constipation. Fiber also helps to maintain bow... More »

Autonomic neuropathy can lead to excessive sweating and bowel problems such as constipation, problems controlling bowel movements and vomiting food the body was unable to digest, notes MedlinePlus. Fecal impaction can le... More »