The main reasons for the most serious pain symptoms at night after a broken foot are as follows: 1. If the patient continues to walk with weight after a broken foot, the local swelling may increase, and the swelling reaches its peak at night rest, and the patient will have severe pain symptoms. 2. After a broken foot, the patient does not have obvious swelling at that time, but with time, the swelling is most serious at night rest, and the pain will be very obvious at that time. 3. After a broken foot, there is a local Fracture, there will be chronic blood loss at the fracture end and hematoma will be formed at night, which may lead to severe pain. Therefore, the pain is the most serious at night when resting after a broken foot. Patients need to take X-rays as soon as possible to confirm whether there is a serious fracture, and give cold compresses and braking treatment as soon as possible to relieve the pain symptoms.