After doing sit-ups the next day abdominal pain, you can relieve the pain through the following methods: first, the abdomen can be hot compresses, it is recommended to use a hot water bag or hand warmer for hot compresses, can not be too hot. When the hot compress is longer, it will promote the absorption of lactic acid in the body, and can also reduce the pain. Second, you can gently massage the abdomen, can also promote blood circulation, at the same time can reduce the fatigue of local tissues, can also promote the absorption of lactic acid. Third, you can drink more warm water, drink some fruit juice, these can help relieve pain. Fourth, if the patient’s time permits, and the economic situation is better, you can carry on the physical therapy of the abdomen, which can also help relieve the pain. After the pain patients should avoid drinking drinks containing alcohol and try not to eat too spicy food, all these may lead to aggravation of the pain. Fresh fruits and green vegetables can be consumed appropriately, and low-fat high-quality protein can be consumed appropriately to promote local recovery.