During past four years, we have experienced 101 cases of Habu bite-81 sequela cases and 20 fresh cases.Bitten site were 65 upper extremities, 33 lower extremities, and 3 other sites.Operative findings of bite region were presented about four cases and discussed the factors of sequela.The main changes which make the sequela are hemorrhagic muscle necrosis and hemorrhage of surrounding tissues.To prevent the sequela, we emphasize adequate local incision and decomression fasciotomy.