At the visit, the doctor will ask about your symptoms. If you tell the doctor that you are bleeding with bowel movements, he or she will ask you about the color of the blood--whether it is bright red, indicating fresh blood, or dark colored, indicating blood from higher up in your intestine--and whether you notice it in the toilet water, on the toilet paper, or both. They might ask you when the bleeding started, but I don't really think you have to mention anal sex. It won't change the diagnosis. In fact, sometimes these things happen for no apparent reason. Are you having any pain? A fissure can cause sharp pain with bowel movements. Absence of pain does not rule out a fissure, but it could possibly indicate another problem, like hemorrhoids (which are even more common than fissures). If it is not too painful, the doctor will perform a digital rectal exam (stick his or her finger in your rectum) to feel for any abnormalities, or the doctor will simply spread your butt cheeks apart to look inside your rectum. I know this doesn't sound like too much fun. But you have to remember that these doctors do this all the time. The anus is just another part of the body, and sometimes it needs checking out. If it is a fissure, the doctor will probably suggest conservative measures at first--especially if you are not in serious pain. This usually consists of: wiping with baby wipes, instead of regular toilet paper; applying a diaper rash ointment like Balmex after bowel movements; drinking lots of water (8 glasses a day); taking a fiber supplement and/or a stool softener; and possibly using medicated creams. For hemorrhoids, the initial treatment is pretty much the same. I honestly don't think that you have anything to worry about. But it's better to get it checked out, at least for your own peace of mind. Like I said, your symptoms are very common. I've been through the whole fissure thing, and while it's not fun, it is not a serious condition. Get it checked out--you'll feel a lot better that you did. And seriously--don't worry. Rectal bleeding is very common and rarely indicates anything dangerous. Try to stay upbeat. Life's too short!