Lock Yang Water is a tea drink made from the Chinese herb lock yang, which may cause constipation in the general population if consumed for a long period of time. Lock yang its taste sweet, warm, with tonic kidney yang, benefit essence and blood, lubricate the bowels (moisturize the intestines in order to pass stool) effect, can be used for kidney yang insufficiency (lack of yang qi of the kidneys), essence and blood deficiency caused by the lumbar and knee soreness (lumbar and knee soreness and weakness of the sensation), impotence, spermatorrhea and intestinal dryness constipation (dryness in the intestines and bowels due to the bowel movement difficulties), such as treatment of the disease. Tea is limited in efficacy, not a substitute for specialized medication, and lock yang is sweet and warm in nature, long-term consumption may lead to constipation (constipation caused by fluid deficiency), so it is not recommended to blindly use long-term or large quantities of Chinese herbs brewed water as a substitute for tea. If there are symptoms, it is recommended to consult a doctor in time, do not self-medicate, in order to avoid the occurrence of related adverse reactions.