1. The onset of hernia is caused by the weakness of the abdominal wall itself or high abdominal pressure. Pregnancy can cause an increase in abdominal pressure and increase the risk of serious complications of the hernia, so it is recommended to operate again as early as possible before pregnancy. 2. Hernia recurrence often has intrinsic causes: such as chronic coughing, heavy work, constipation and other factors that increase abdominal pressure. It is recommended to treat or correct the causes of hernia recurrence before surgery to avoid recurrence. 3. It is possible to operate again, and tension-free hernia repair with patching is recommended.