After anal fistula surgery patients can drink ribs soup, carp soup, egg soup, meat soup, etc. The damage is actually not very big, so there is no need for special strengthening of nutrition, like if you eat too much pigeon soup, turtle soup, etc. resulting in excess nutrition, too fast growth of meat buds in the incision, but will affect the healing of the incision. The first thing you need to do is to have a balanced diet and eat light, plant fiber-rich foods, such as vegetables and fruits, like kiwi, dragon fruit and apples. If the stool is still dry, you can take oral stool softening medication, such as Fosone or Lactulose.