Bundle syndrome is a congenital disease, mainly manifested in the limbs after birth limb deformities, forearms fingers, calves, toes appear ring-shaped tightness, the formation of the relevant bundles, mildly does not affect the blood circulation can be no big deal. Some cause limb venous and lymphatic reflux obstacles, so that the distal limb edema hypertrophy, skin color purple, there can also be damage to the nerves, pain, activity disorders. Severe cases can appear distal limb necrosis and other consequences, once the occurrence of limb necrosis, the need for amputation treatment.