Leg cramps are mainly caused by cold-dampness, blood deficiency, yin deficiency, etc. They can be treated with the addition or subtraction of medicines such as Duo Wu Sheng Tang, Ba Zhen Tang, Zuo Gui Wan, etc. The disease of leg cramps is in the tendons. The pathology of leg cramps is in the tendon, clinically, it is more common to feel the cold-dampness evil or own qi, blood and yin deficiencies and cramps, in the treatment of the specific conditions need to be combined with the identification of the drug. Cold and dampness is heavy, need to dispel cold and dampness, soothe the tendons and collaterals, you can choose to live alone parasitic soup plus subtraction treatment, at the same time pay attention to keep warm. If there is a deficiency of qi and blood, the tendons and veins may be nourished and twitch, so tonify qi and blood, and moisten the tendons and veins, such as Bazhen Tang. For obvious Yin deficiency, nourishing the Yin of the liver and kidney is the mainstay, e.g. Zuo Gui Wan. Adverse effects of the above drugs are not clear, and are contraindicated in pregnant women, children and allergy sufferers. Patients with symptoms of leg cramps are advised to seek prompt medical attention, and medications should be used under the guidance of a physician.