The most common causes of leg pain are compression of the leg nerve, muscle strain, arthritis, varicose veins, as follows: 1, leg nerve compression: the leg nerve is compressed, so that the leg nerve muscle is in a state of long-term tension, will lead to the existence of significant leg pain symptoms. 2, muscle strain: the recent period of strenuous exercise caused by muscle strain, body 3, arthritis: patients with arthritis, such as the existence of hip, knee and ankle arthritis, there will be inflammatory material exudation, inflammatory stimulation of local muscles will lead to sore legs symptoms. 4, varicose veins: patients with varicose veins, will also lead to sore legs clinical symptoms.