Once an anal fistula occurs, the chances of it healing on its own are slim, and it must be treated surgically to allow it to heal. So how should we prevent anal fistulas in general? What should I pay attention to in my daily life? 1, check gently: in the anal routine examination, to be gentle, avoid violence, so as not to damage the anus. The actual fact is that you will be able to get a lot more than just a few of these. 2, to keep the anus clean: develop the habit of washing the local after the stool or washing the anus every morning and evening to keep the anus clean. 3, diet to clean: unclean diet, can lead to diarrhea, very easy to cause anal gland infection, causing anal fistula. The actual fact is that you will be able to get a lot more than just a few of these. Anal fistula is an abnormal channel that occurs between the lower end of the anal canal or rectum and the skin next to the anus, mostly seen in adult males, is a very troublesome anus disease. This is why it is important to understand the causes of anal fistula and to do a good job of prevention. What are the causes of anal fistula? 1, after the perianal rectal abscess breaks, the pus is discharged, the pus cavity gradually shrinks, the external rupture and incision also shrinks, and the cavity wall forms a hard pipe wall with proliferation of connective tissue, and thus cannot be closed naturally. 2, fistula passage between the anal sphincter, because the sphincter often constantly contract and diastolic, compression of the fistula, affecting the drainage of pus, easy to Kong pus infection and difficult to heal. 3, recto-anal injury: trauma, bony foreign body from the gastrointestinal tract, metal, anal table and anal speculum inspection damage the anal canal rectum, bacteria invade the wound can cause perianal abscess. 4, abscesses formed by infections such as Mycobacterium tuberculosis, Actinomyces, etc., Clonorchiasis, etc. are difficult to heal themselves and form special anal fistulas. 5, perianal abscesses, mainly due to fecal retention in the anal saphenous propaganda fossa, causing anal adenitis, resulting in perianal abscesses, is the main reason for the formation of anal fistula. 6, poor anal venous reflux, frequent local bruising, tissue malnutrition, affecting healing.