Numbness of the calf’s belly has more causes, which may be related to disc herniation, trauma, vascular lesions and so on. 1. Herniated disc: when the herniated disc compresses the nerve root, it may cause pain and sensory abnormalities in the lower limbs innervated by the compressed nerves, resulting in the sensation of numbness in the calf. 2. Trauma: trauma can lead to soft tissue injury or fracture of the lower limbs, when the injury compresses the common peroneal nerve or femoral nerve, it will also cause sensory impairment of the lower legs and numbness of the calf. 3. Vascular lesions: such as arteriosclerosis occlusive disease, aortitis and other diseases, can cause the blood supply of the calf is impaired, the blood circulation of the calf muscle is impaired, can also cause numbness in the calf, and accompanied by swelling, pain, claudication and other symptoms of the calf. Numbness of the calf belly can also be seen in other causes, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions to carry out relevant examinations, with the help of the doctor to clarify the cause, and targeted treatment or treatment.