I am having bleeding while i deficate, what i need to do?

Bleed per rectum: You need to see a gastroenterologist (GI) to see what the cause is. At 20, the most likely cause is bleeding from hemorrhoids. Go to the GI and get examined. If the bleeding isn't from hemorrhoids, you may be asked have a colonoscopy done which will allow your large intestine to be examined looking for the cause of your blood. Good luck.

See your doctor...: Rectal bleeding is a potentially serious problem and requires immediate medical attention. The causes range from common benign hemorrhoids to colon and rectal cancer. Don't delay in seeing your doctor. Good luck!