Oliver Bee RMTRegistered Massage Therapist

Massage therapy · Kitchener–WaterlooMetacarpal Bone Fracture

Elbow, Wrist & Hand

What It Is

A broken hand (fracture) is quite common. Common causes include falls, sports injuries, and hitting an object with a clenched fist; crush injuries and car accidents can also cause it (North Tees and Hartlepool NHS Foundation Trust, 2026; AAOS, n.d.). How serious the break is varies, but in many cases a hand fracture heals well without surgery (AAOS, n.d.). Fractures can range from a small crack in the bone to a break where the bone comes through the skin (an open fracture). Treatment depends on how severe the injury is and exactly where the break is. A more serious fracture, or one where the pieces do not line up properly, may need surgery to insert wires, screws, pins or plates to hold the bone in the right position while it heals (AAOS, n.d.).

For the hand to fracture, a significant force has to be applied to it. Hitting or punching a wall can cause it, as can other blunt trauma to the hand, sport, or car accidents where the hand hits the steering wheel.

Metacarpal Bone Fracture Anatomy

The metacarpal bones are the five long bones in the palm of the hand. They connect the fingers to the hand and wrist (AAOS, n.d.). They are labelled the 1st to 5th metacarpals, with the first metacarpal leading to the thumb and the 5th metacarpal leading to the little finger. The metacarpals lie between the carpal (wrist) bones and the phalanges (finger bones).

A metacarpal can break at different places along its length, from the head (near the knuckle) and neck, through the shaft (the middle), to the base (North Tees and Hartlepool NHS Foundation Trust, 2026). The most common hand fracture is a break of the fifth metacarpal, the bone that supports the little finger, near the knuckle. This is often called a "boxer's fracture" because it is usually caused by punching a hard object with a closed fist (AAOS, n.d.).

Most people have pain, swelling, bruising and loss of movement. The knuckle may look sunken or change shape, which is usually permanent. You may also notice a bump over the back of the hand where the bone is healing; this tends to get smaller over several months (North Tees and Hartlepool NHS Foundation Trust, 2026; AAOS, n.d.).

Not a diagnosis — for more information, contact me or another trusted healthcare provider.

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At Fearless Heart, 25 Dupont St E in Uptown Waterloo, or as a home visit across Kitchener–Waterloo.