Does fissure and rectal cancer have similar symptoms? my dad is having fissure & i wanted to know the difference between the symptoms of both of these

Very different : These are two very different conditions and may be associated with underlying disease such as ulcerative colitis. However rectal cancer tends to be a growing painless mass with bleeding whereas a fissure is more of a wound that tend to be painful, irritated and/or inflammed. Neither should be ignored and dueto the difficulty of performing a self exam should be monitored by a physician with biopsy.

Similar Symptoms: Both the fissure and rectal cancer are in the rectum and can cause pain, bleeding, frequent bowel movements. Since the symptoms can be similar, a person needs to have a colonoscopy to visualize the area and the fissure looks like a tear in the lining of the rectum and the other is a mass that looks abnormal and needs a biopsy.