Inflammatory changes of the rectal mucosa means that the rectal mucosa is congested, edematous, or even eroded. If the rectum is infected, including bacterial infection, viral infection, etc., the rectal mucosa will be inflamed, and if diseases such as radiation proctitis occur, the rectal mucosa will also be inflamed. When inflammation occurs in the rectal mucosa, if you do a colonoscopy, you will find that the rectal mucosa will be congested and edematous, and sometimes there will be erosions and ulcers, which will be called the inflammatory changes of the rectal mucosa. There are many causes of rectal mucosal inflammatory changes, so after the discovery of rectal mucosal inflammatory changes, we need to further improve the relevant examinations, such as stool routine, stool culture, etc., and sometimes need to carry out a biopsy, to be able to clarify the cause of the disease, and then you can carry out the appropriate treatment.