1. What is anal fistula in babies? Anal fistula in babies refers to the abnormal connection between the rectum and anus, which is common in newborns and infants. This condition can prevent stool from passing properly, causing problems such as pain and infection. If not treated in time, it may have serious consequences for your baby\’s health. 2. Symptoms of anal fistula in babies: 1. Difficulty in defecation or complete inability to defecate; 2. The skin around the anus is red, swollen and moist; 3. There is pus or blood flowing out; 4. The baby often cries and becomes restless, especially during defecation. 3. Causes of anal fistula in babies 1. Congenital