The occurrence of anal fissures is highly related to constipation. Therefore, for patients with anal fissures, treating and preventing constipation is the most important approach. It is advisable to eat more vegetables and fruits, consume fewer spicy and stimulating foods, and reduce the intake of greasy foods. The diet should be light, drink more water, and pay attention to local hygiene. Furthermore, patients with anal fissures should avoid sitting or squatting for long periods to prevent aggravating the condition. If symptoms such as fever, difficulty defecating, or severe pain around the anus occur, it is crucial to visit a hospital for examination to rule out other conditions. Regular participation in physical exercise is recommended to promote intestinal movement and facilitate defecation.