Men soak eucommia water to drink can play a tonic liver and kidney, strong muscles and bones, eucommia contraindications are not yet clear. The Chinese medicine eucommia is the bark of the plant eucommiaceae. It is warm in nature and sweet in flavor. It belongs to the liver and kidney meridian. It has the effect of tonifying the liver and kidney, strengthening the tendons and bones, and tranquilizing the fetus. It is used for liver and kidney deficiency (weakness of liver and kidney), lumbar and knee pain, weakness of muscles and bones, dizziness, leakage of blood in pregnancy, and restlessness of the fetus. Cortex Eucommiae is a warm tonic and should not be used in cases of yin deficiency (deficiency of yin and essence in the body, resulting in hyperactive fire). Cortex Eucommiae in water may not be able to fully analyze the active ingredients, so the efficacy of the medication, it is recommended that the patient under the guidance of a doctor to standardize the use of medication, do not take medication on their own, so as not to delay the condition.