Sankaku Channel/amputation

Amputation is usually a medical procedure of removing part of the body like an arm or a leg. As well as refers to such a removal done by accident or a deliberate, cruel action of others. Situation when a person removes his or hers own part of body is not common but can happen.
To tags properly use amputation while the post shows exact moment of removing the body part. For person without a body part use amputee.