Hi Doctor, Six years back, In sleep I had a sharp pain in the inner anus. From then, I wasn't able to control my anus (sphincter) muscle and I was getting that pain then there. Controlling in the sense, I cannot able to close it fully how hard I try. I could feel the movement (contraction and expansion) was very minimal. So my anus, wasn't to able expand to the fullest and later I started to develop constipation because of this. So constipation led to make a small bump in the right side of the anus. I realized that there was something not right. Over the four years span, I got the anus pain then and there, and after every pain, gradually the anus ring (i don't know whether its External or internal anal sphincter) got very rigid. From then I cannot expand it, I was able only to shrink it to a minimal extend and not fully. I was really afraid to go a doctor then. Then a year back from now, I went to a doctor, he said that I have anal fissure. I visited another doctor and he said its hemorrhoids and I had a laser operation for that. After, my anus become really small, only soft stools can pass. The initial source of the problem still exits. The operation made the condition worst and it made my anus really small. I visited the doctor from who I took the operation and explained this. He said that everything is okay and told me not worry. From then, I don't know what to do. Now passing stool daily morning became a difficult task for me and since my anus is small, I cannot take shit in a single time and that added more to the constipation. My anus ring (sphincter) become really really rigid and solid. Not able to expand and able to shrink only very little amount. I cannot hold stool if its commit urgent, since I cannot shirk it to the fullest. Every time when explain all these things to a doctor, they consider that my problem is anal fissure or hemorrhoids. But the problem is really not that. From my personal experience, I say it because for of the inability to control the anus (outer sphincter) muscle. I really stuck with this and I don't know how to proceed. Can you please help me? Thanks.