Hi welcome to HCM I have gone thru your query regarding burning sensation in anus while having a bowel movement . It is a matter of concern . Every one ,one time or another in life suffer and have difficulty moving their bowels. Many things contribute to this problem. Main causes include faulty food habits and activity level and derailed life style , due to which you suffer from constipation and results in accumulation of toxin causing gastro problems . While being constipated you may strain during a bowel movement or just pass very hard stool. this may contribute to the development of anal problems such as fissures (painful cracks in the anal tissue lining) or hemorrhoids. The abnormal contraction can lead to high pressure that builds up in the colon causing abdominal cramps, gas, bloating, and sometimes feeling of extreme urgency and other anus problems You can get relief from most of your problems by modifying your life style and food habits by avoiding fried , fast foods made of fine floor , too much of tea coffee , alcohol , smoking ,anger , stress all create toxins , imbalance your system causing gas other digestive problems . Take balanced diet ,containing essential nutrients - fiber ,vitamins ,minerals ,veges , fruit and antioxidants - turmeric powder , ginger , garlic ,lemon juice in natural form For immediate relief You can use Home remedies for a burning sensation of the rectum . The use of mixture of aloe vera juice 20 ml and Amla juice 20 empty stomach . Buttermilk in lunch, radish ,carrot as salad , Apart from this, maintaining good hygiene around the anus and application of hot and cold packs , Vaseline, Aloe vera jelly .help remove your problem . If problem persists consult your doctor . Hope this helps solve your query Take care All the best