Impaction of the bowels
The health care provider will examine your stomach area and rectum. The rectal exam will reveal a hard mass of dry stool in the rectum.
If there has been a recent change in your bowel habits, your doctor may recommend a colonoscopy to evaluate for colon or rectal cancer.
Nelson H. Diseases of the rectum and anus. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 148.