There are about 25 bones and 20 joints in each human hand. A fist hitting any surface can cause minor, moderate, serious injury and sometimes permanent disablement to any part of the hand (harm levels 1 and 2). Some fractures are so commonly caused by punching that a fracture of the fifth metacarpal is commonly called a "boxer's fracture." Doctors can frequently differentiate punch fractures from fall fractures.

 

Hand and wrist wraps are used to compress (and keep compressed when hitting) the bones and tissues in the hand. The claim is that such compression allows boxers to hit with greater force than if they did not use them. Boxers claim they feel less pain when hitting so their opponent may feel more pain.

 

Each sports person, cornerman or cutman has a preferred wrapping method based on the situation and experience Variations can produce more wrist support, thumb support, padding for the knuckles or less fabric within the fist. Sometimes a single wrap between fingers over the finger-web help stabilize the wrap and keep it from "riding up" within a looser-fitting glove. Competition rules may restrict the type and amount of material used, giving each fighter a limited amount of gauze and tape which may be divided and rolled in various ways for a particular fighter or match.

 

Training wraps are usually re-usable cloth and may be secured with a small tie-tab or with velcro. Conventional handwraps are non-elastic. Mexican-style handwraps are slightly elasticized and are popular with many boxers. The length of wraps will vary depending on rules, personal preference, hand size and the type of glove to be worn, with shorter wraps common for fingerless "grappling gloves" used in mixed martial arts.

 

A new alternative to handwraps are foam or gel-lined fingerless gloves worn inside any boxing glove; these can be used to reduce and prevent harm to the hands and head for bag work, sparring or competition depending on the rules of the governing organisation. They take much less time and hassle than gauze, although they are generally seen as not being as effective.