Cuttlefish bones are also called squid bones and cuttlebone, which are salty and astringent in nature and have the effect of collecting astringent and stopping bleeding, astringent essence and stopping belt and controlling acid and astringent sores, and can be commonly used clinically for various kinds of bleeding, such as pulmonary bleeding as well as gastrointestinal bleeding, blood in urine and bleeding from collapse, etc. It can also be used for bleeding from trauma and can be ground and spread on the affected area. For ulcer disease, pain and panacidity, stomach bleeding can be used with corrugated seeds, licorice and other drugs grinded together. In addition, squid bone is also used for leucorrhea and seminal emission. For sores with pus and wounds that do not heal for a long time, squid bone can be applied externally with ground squid bone.