There are two main reasons why the post-operative trauma of hemorrhoids is itchy: 1. The incised trauma will have secretions, which will stimulate the trauma to produce an itchy sensation, and this itch can be improved by external washing with Chinese herbs or warm boiled water. 2. With the late growth of the granulation, the growing granulation slowly compresses the nerves, which will produce an itchy sensation. This itch is like the feeling of ants crawling on your body and is generally tolerable. You should keep the trauma clean after hemorrhoid surgery. You should clean the trauma after a bowel movement and before you go to bed at night, so you can keep the trauma clean and free from infection. The doctor will change the medication every day to keep the trauma draining freely.