Musk, alias inch, yuan inch, dangmen. It is the dried secretion from the scent sac of the male body of musk, horse musk, or original musk of the deer family. It is mainly produced in Sichuan, Tibet, Yunnan, Gansu, Shaanxi, Inner Mongolia and other places. Pungent and warm, enters the heart, spleen and liver meridians. It opens the orifices, opens obscenities, activates blood circulation and disperses knots. It is a valuable Chinese medicine with contraceptive effect musk smell can make women’s uterus cold, simply put, is on a piece of frozen land, sowing more seeds will not germinate, not to mention the flowering results. How to use musk to prevent pregnancy or cause infertility, six months in advance to musk strong into the incense sac, put in the bedroom, it will cause female infertility, the effect is very significant.