Doctor's Notes on Rectal Pain
Rectal pain is pain that occurs in the lower portion of the gastrointestinal tract (rectum or anus). Rectal pain occurs due to a number of causes, including injury or trauma to the area, sexually-transmitted diseases, muscle spasms, anal fissures, ulcers of the anal lining, hemorrhoids, perirectal abscesses, impaction of feces, or inflammatory bowel disease.
Rectal pain can be associated with many different symptoms, and signs and symptoms depend upon the exact cause. Associated symptoms can include bleeding from the rectum or anus, blood in the stool, redness of the skin around the anus, painful urination or defecation, incontinence of feces, diarrhea, feeling of fullness sin the rectum, itching, or irritation. Some causes of rectal pain can also cause abdominal or pelvic pain as well as vaginal or penile discharge.
Human Body : Human Body Systems & Organs Quiz

What percentage of the human body is water?
See AnswerREFERENCE:
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.