The earth turtle worm, also called stinging insect, is salty, cold, and slightly toxic, and mainly belongs to the liver meridian. It has a strong effect on blood circulation and blood stasis, so it is good for treating women with menstrual cramps, postpartum abdominal pain, and abdominal masses. It can be used together with Boswellia and Myrrh to invigorate the blood, dispel blood stasis and relieve pain in patients with fractures and bruises. In modern pharmacological research, because of its anti-coagulant, anti-thrombotic, vasodilator and lipid regulating effects, the turtle worm is useful in the treatment of coronary heart disease, peripheral vascular obstructive diseases and deep vein thrombosis of the lower extremities. The earthworm is good at breaking down blood stasis, eliminating swelling and dispersing nodules, and has a strong power to break down blood and treat blockage of blood. It is also an essential medicine for the treatment of malaria. It is good for the treatment of modern type B chronic active hepatitis, and is commonly used in the form of turtle shell decoction pill.