Cuttlebone, the name of traditional Chinese medicine. For the praying mantis family insects Tenodera sinensisi Saussure, small knife mantis Statilia maculata (Thurlberg) or giant axe mantis Hierodula patellifera (Servi11e) dry egg sheath. The above three kinds of habitually known as "group cuttlebone", "long cuttlebone" and "black cuttlebone". It has the effect of fixing sperm and shrinking urine, tonifying the kidney and helping the yang. Commonly used in spermatorrhea, urination, urinary frequency, urinary turbidity.