NCBI Bookshelf. We all have hemorrhoids. Together with a circular muscle called the anal sphincter, they help to control bowel movements. Some might be afraid of having a physical examination or finding out that they have a serious illness. But seeing a doctor about your symptoms is important if you want to have the right treatment. Hemorrhoid problems can cause various symptoms.
Sometimes anal cancer causes no symptoms at all. But bleeding is often the first sign of the disease. The bleeding is usually minor. At first, most people assume the bleeding is caused by hemorrhoids painful, swollen veins in the anus and rectum that may bleed.
Your rectum is the last part of your colon. Rectal prolapse is when part of the rectum bulges out of the anus. At first, a prolapse may happen only after a bowel movement. The prolapsed part of the rectum may then slip back through the anal canal on its own.
Top of the page Check Your Symptoms. Rectal problems are common. Almost everyone will experience some rectal itching, pain, or bleeding at some time during his or her life.