Nest fern has the effect of activating blood circulation, removing blood stasis, strengthening tendons and bones, and has the effect of treating bone fractures and other diseases. Nest fern, also known as iron leech, is a kind of herbal medicine, bitter taste, warm nature, into the human liver meridian and kidney meridian, has the effect of activating blood circulation and removing blood stasis, strengthening the tendons and bones, so in the clinic there is a treatment of bone fracture, bruises, rheumatism and bone pain and other diseases. When applying Chao Fern to treat diseases, patients need to pay attention to a light diet, prohibit the consumption of fat, sweet, spicy and other stimulating foods; such as suffering from coagulation dysfunction disease patients, be careful with the use of the drug. If patients have a need for medication, they must be under the guidance of a professional physician, and should not use the drug blindly, so as not to lead to adverse consequences.