I go toilet two times everyday. Though enough amount stool pass still do not get satisfaction, seems to me more stool will be passed. Then next time means in evening on that day when I go toilet stool becomes little hard and anal fissure occurs. My question is how only 10 hours interval stool becomes hard? Stool becomes hard if 1 or 2 days not stool pass, but for my case stool becomes hard after interval of morning and evening? How is it possible?