Postpartum calf pain may be related to the following reasons: 1. It may be due to some fatigue damage to the muscles in the calf area during the process of birth. In the process of childbirth, because the whole body is under high tension, and the lower limbs also need continuous force, the thighs, calves and other parts of the muscle may cause continuous fatigue, and then cause muscle pain after childbirth. 2, may be due to cold caused by. The whole lower limbs and even the whole body are often exposed during the process of childbirth, and may be in contact with some cold objects, such as the delivery bed, which may lead to aseptic inflammation in the calf area and cause postpartum pain. 3, may be caused by osteoporosis. The patient may have a decreased appetite for a period of time after giving birth, or even completely unable to eat, and at this time the body is still relatively weak. 4, may be due to the patient’s lack of muscle strength caused by. Many patients are used to resting in bed for a long time after giving birth, which will lead to disuse muscle atrophy of the lower limbs, and when the patient goes down to the ground for weight-bearing activities, there may be some muscle fatigue injuries due to insufficient muscle strength, which will lead to pain.