The efficacy of earthworm is to break blood and expel blood stasis, renew tendons and bones, so earthworm can cure bone fracture, and to treat fracture injuries, often with natural copper, bone broken and other drugs. It is salty in taste and cold in nature; it is slightly poisonous. It belongs to the liver meridian. It is commonly used in treating bruises, fractures, menstrual stasis, post-partum abdominal pain, mass in the abdomen and lumps in the abdomen. If it is used for treating fainting from serious injuries, muscle injury and fracture, it can be combined with natural copper, frankincense, myrrh, blood exhaust etc. to make bulk wine; if it is used for treating the late stage of bone fracture and muscle injury with weak tendons, it can be combined with Fructus Schisandraeae and Cortex Eucommiae. It should be noted that, for the sake of medication safety, Turbellaria sinensis should be prohibited for pregnant women. Patients with drug allergies are susceptible to allergic reactions, mainly manifested as generalized itching and bright red lesions on the skin. In addition, if you suffer from bone fracture, you should seek medical treatment in time, and use medication reasonably under the guidance of doctors, do not blindly use Chinese herbs on your own to prevent aggravation of the condition.