Hi Any tear, ulcer or cracks in the lining of the anal canal called anal fissure. It can be easily treated with out surgery also strictly follow these suggestions. 1.drink plenty of water minimum 3-4 litres per day. 2.eat small amount of food in regular intervals. Make sure 1/2of your stomach must contain food substance, 1/4 contain water and remaining 1/4 th contain empty space so don t eat large quantity of food at the same time. 3.chew the food properly then swallow because salivary juice plays a vital role in the process of digestion 4.eat freshly prepared food and your diet must contain sprouts,vegetables rich in water content and green leafy vegetables. 5.soak one teaspoon of fenugreek seeds at night in a plain water and drink that water next day morning in an empty stomach. 6.don t go to bed immediately after food. Give 2 hours time between your dinner and bed time. 7.do regular yoga practices to relive your constipation. 8.avoid non veg Maida products, junk foods and spicy foods and carbonated drinks. Strictly follow these suggestions definitely you will get rid from your problems. If the problem still persists you need to consult a Dr for the surgery. I pray will become alright by your life style modifications. Take care. Bye.