 [ Symptoms ] how do bacteria affect respiratory diseases [ Disease ] hi gangrene is rather unusual in such small babies the cause of gangrene needs to be found out whether its due to any dangerous infection or occlusion of the arteries if pricking of the toes by lancet brings blood out of the toes then there is no need of amputation toes can be salvaged only if the toes are completely blackened without having any blood supply only then they need to be amputed salvage operations should be tried first and sincere and agressive attempts need to be made to save the toes thanks