Answer:
It means that something in your gut is bleeding. If you see bright red blood in the toilet bowl after a bowel movement and feel weak (not just from the shock of seeing blood), seek medical attention promptly. If you see a little bright red blood on the toilet paper after you wipe, you should mention this to your doctor. Even though it will likely turn out to be hemorrhoids, blood in the stool can come from something that can be an emergency, like a bleeding ulcer or a dead section of bowel, or from something equally bad but not immediately life-threatening, like cancer. The point is, you can't diagnose yourself, and more serious causes must be ruled out. Call your doctor.