Incomplete evacuation last for four years. Sometimes sharp pain near the belly button. After enema also stool is not completely gets out. Manual evacuation is required daily to expel end 25℅ of stool Often Mucous is seen in stool. Sometimes I feel urge and go to poop that time poop is little loose and has little blood with mucus. Feel burning sensation in anus. constantly pain in anal area. No external haemorrhoid present. No visible anal Fissure. The stool sometimes constipation sometimes loose.