i have been experiencing a stinging pain in my rectum and i even have a blood coming out along with my bowel,i consulted a general physician .the doctor said it could be a hemoroids,is it possible that i have a colon cancer or prostate cancer. please help me understand. it worries me very much . hope to find answers here. thank you.

Prostate cancer does not make your rectum bleed. There are no symptoms usually associated with prostate cancer but sometimes men will have problems with voiding (of course that can just be from an enlarged prostate and not cancer). the only way that prostate cancer is suspected is if the PSA (blood test) is elevated and a rectal exam to check how the prostate feels. the ONLY way to tell for sure if there is prostate cancer is to have a prostate biopsy.
the fact that you have pain in the rectum and blood with bowel movements is more likely hemorrhoids than anything else.

I had bowel cancer & had no pain. I just started losing a lot of weight & hospital tests found the cancer.

Colon cancer can have many symptoms. However, in the early stages, people with colon cancer often have no symptoms at all. this is why people should know how colon cancer spread and regular screening beginning at 50 is an important investment in your healthy future.

1. a change in bowel habits
2. Diarrhea, constipation or feeling that the bowel does not empty completely
3. Blood, either bright red or very dark in the stool
4. Stools that are narrower than usual
5. General abdominal discomfort such as frequent gas pains, bloating, fullness or cramps
6. Weight loss with no known reason
7. Constant tiredness
8. Vomiting