Dr Gowri Singh is the Best Anal Fissure Treatment Doctor in Viman Nagar, Kalyani Nagar, Koregaon Park, Vishrantwadi, Kharadi, Wagholi and Pune. An anal fissure is a small cut or tear in the lining of the anus. The crack in the skin causes severe pain and some bright red bleeding during and after bowel movements. At times, the fissure can be deep enough to expose the underlying muscle tissue. An anal fissure usually isn't a serious condition.