Saffron is safflower, which is produced in plateau and has good medicinal properties. It is pungent and warm, can promote qi circulation and dissipate stagnation, and has the functions of promoting blood circulation and dredging menstruation, removing blood stasis and relieving pain. Because it can disperse blood, make blood flow and open meridians. There is a saying in Chinese medicine that the general principle is painless, but pain is unreasonable. After activating blood circulation and dredging collaterals, the pain of blood stasis can be healed, and after activating blood circulation and dredging collaterals, the blood stasis disappears, so it is analgesic. Clinically, it is mainly used for diseases related to blood stasis. Most commonly used in gynecology, mass caused by amenorrhea, dysmenorrhea, lochia or blood stasis. It is also used for common chest wall heartache caused by blood stasis, abdominal pain caused by abdominal blood stasis, or pain in other parts, such as chest oblique part, or pain caused by traumatic blood stasis. The commonly used dose in clinic is 3- 10g.

Taboos and side effects, because they can promote blood circulation, are prone to bleeding, and are not suitable for people who are prone to bleeding, nor for pregnant women, which may easily lead to abortion.