Next in line is Constipation which is treatable with laxatives and changes in life style. The causes of this medium-term Constipation include a low-fiber and high-fat diet (dairy products, meats and eggs), not drinking enough liquids, excessive use of dehydrating liquids like coffee, tea, cola and alcohol, lack of exercise, sedentary lifestyle, usage of medications like antacids, antidepressants, antispasmodic drugs, iron tablets, anticonvulsant drugs, painkillers or prolonged medication for some other chronic condition which causes Constipation as a side effect, old age, pregnancy, abuse of laxatives and repeatedly refraining from having a bowel movement when the urge is there (for example, due to continuous travel or in order to avoid using public toilets).

Chronic Constipation is a long-term problem, which can be divided into diseases that directly affect the GI tract and cause the problem, and diseases elsewhere in the body, which cause Constipation. Problems of the GI tract include irritable bowel syndrome (IBS), chronic idopatic intestinal pseudo obstruction, intestinal obstruction (scar tissue, diverticulosis, tumors, colorectal stricture, Hirschsprung's disease and cancer), colonic inertia and delayed transit (the colon muscles do not push the stool with normal strength and the movement of the stool is delayed), anorectal dysfunction (this condition prevents the rectal muscles from relaxing to pass the stool) and structural problems (anal fissures, hemorrhoids, strictures, tumors, rectal prolepses, fistulae, stenosis and rectede).

Most of the above problems need specialized equipment and tests. Disorders with other parts of body which cause Constipation are neurological diseases like multiple sclerosis, Parkinson's disease, stroke and spinal cord injuries, metabolic and endocrine problems like diabetes, uremia, hypercalemia, amyloidosis and scleroderma.