There are three main types of constipation
Obstructive constipation
Is the result of actual physical obstruction. It needs treatment by a qualified doctor.

Atonic constipation
Is the result of lack of intestinal muscle tone. It is often caused by poor health habits. These include not eating enough fiber, not drinking enough water and not exercising.

Spastic constipation
Is caused by irritation of the bowel or intestines. Spastic constipation suggests that there is some type of irritation present. In this case, a diet that is low in fiber is usually recommended. It is also a symptom of irritable bowel syndrome.