There are a number of reasons for sinking calves. The most common cause is poor local circulation, resulting in local blood stasis and thus causing a series of symptoms. The most common cause is poor local circulation, which leads to local stasis and a series of symptoms, such as the formation of venous thrombosis in the lower limbs and the narrowing of blood vessels, which should be further examined, and ultrasound of the blood vessels of the lower limbs should be done. If there is stenosis or thrombosis, it should be treated actively, mainly with some anticoagulant drugs to improve microcirculation or drugs to activate blood circulation and remove blood stasis. There are also lumbar disc herniation and spinal stenosis that can cause heavy calves, which are often accompanied by lumbar discomfort. If it is caused by this reason, further examination of the lumbar spine should be carried out, and magnetic resonance imaging of the lumbar spine can be done. Minor cases can be treated conservatively, but if the herniation is serious and the patient’s symptoms are obvious, surgery should be considered.