Constipation is one of the most common digestive complaints. Constipation is a symptom, not a disease. Constipation is defined as having a bowel movement fewer than three times per week. Some people who are constipated find it painful to have a bowel movement and often experience straining, bloating, and the sensation of a full bowel. Most constipation is temporary and not serious. Understanding its causes, prevention, and treatment will help most people find relief. Constipation also requires an immediate assessment if it is accompanied by worrisome symptoms such as rectal bleeding, abdominal pain and cramps, nausea and vomiting, and involuntary weight loss. In contrast, the evaluation of chronic constipation may not require immediate attention, particularly if simple measures bring relief. The most common symptoms of constipation are infrequency, irregularity or difficulty in elimination of the hard faecal matter.