Fever on the soles of the feet is mainly considered to be related to local skin diseases, poor blood circulation, and neurological pathologies. If the situation is more serious, it is necessary to target the choice of treatment program according to the specific cause of the disease. 1. Local skin diseases: If the skin on the soles of the feet is infected by germs or fungal infections, it is usually easy to produce a localized feeling of skin warmth, or may be accompanied by pain and itching. 2. Poor blood circulation: Poor posture for a long time, prolonged sitting and standing, or varicose veins and venous thrombosis in the lower limbs will affect the blood circulation in the plantar area, which will lead to localized congestion and trigger the symptoms of plantar fever. 3. Neurological lesions: If there are neurological lesions, such as lower extremity peripheral nerve injury or lumbar spine structural changes, compression of the nerve root can affect the sensation of the sole of the foot, resulting in localized warmth of the abnormal sensation. If the symptoms persist for a long time, it is necessary to find out the specific cause of the disease as soon as possible and then carry out the treatment to prevent the symptoms from aggravating and affecting the function of the lower limbs in the later stage.