Herbs that activate blood circulation and eliminate blood stasis (promoting blood circulation and eliminating blood stasis in the body) include chuanxiong (Rhizoma Ligustici Chuanxiong) and chickweed vine. Rhizoma Chuanxiong is known for its ability to invigorate blood circulation, dispel wind and relieve pain (dissipating wind evil and relieving pain in the tendons and bones). It is mainly used in treating chest paralysis (stuffy pain in the chest), heart pain, stabbing pain in the chest and ribs, swelling and pain in bruises, irregular menstruation, menstrual pain, obstruction of menstruation, abdominal pain in the abdomen, headache, and rheumatism and paralysis pain. Contraindicated for pregnant women. Chicken Blood Vine has the effect of promoting blood circulation, tonifying blood, regulating menstruation, and relaxing tendons and collaterals (stretching the tendons and bones, dredging the meridians and collaterals). It is used for treating irregular menstruation, dysmenorrhea, amenorrhea, rheumatism paralysis, numbness of hands and feet, paralysis of limbs, and blood deficiency and atrophy. When using herbs that can invigorate blood circulation and remove blood stasis, it is necessary to use them under the diagnosis and treatment of a Chinese medicine practitioner.