Broken hand

A broken hand occurs when one or more of the bones of your hand break or crack, often because of a fall. When falling, people reach out their hands to catch themselves. This movement is instinctive. This can lead to a break or crack, also called a fracture. A direct blow to the hand also may cause a break or crack. And a motor vehicle crash can cause hand bones to break, sometimes into many pieces. This type of injury often requires surgical repair.

Breaking a hand is more likely if you play certain sports, such as football or hockey. It also is more likely if you have a condition that makes bones weaker and easier to break, called osteoporosis.

A break or crack in one of the bones in the hand is called a metacarpal fracture. A break or crack in one of the bones in the fingers is called a phalangeal fracture.

It's important to treat a broken hand right away. If not treated, the bones may not heal correctly. This makes everyday tasks, such as writing or buttoning a shirt, difficult. Early treatment also helps lessen pain and stiffness.

Hand and wrist bones

Your hand is made up of bones called metacarpals and phalanges. Each finger consists of one hand bone, called a metacarpal bone, and three finger bones, called phalanges. The thumb consists of one metacarpal bone and two phalanges.

Common symptoms of a broken hand include:

• Severe pain that may worsen when gripping or squeezing or moving your hand or wrist.
• Swelling.
• Tenderness.
• Bruising.
• Obvious deformity, such as a crooked finger.
• Stiffness or inability to move your fingers or thumb.
• Numbness in your hand or fingers.

A strong impact or crushing injury can break any of the bones in your hands. Common causes include:

• Falls. Falling on an outstretched hand is one of the most common causes of a broken hand.
• Sports injuries. Fractures often occur during contact sports or activities where falling on an outstretched hand is likely. These include activities such as pickleball, snowboarding and in-line skating.
• Motor vehicle crashes. Car crashes can cause severe fractures, sometimes breaking bones into multiple pieces and requiring surgery to repair.

Participating in certain sports increases your risk of breaking bones in a hand. Having a condition that weakens bones, called osteoporosis, also makes fractures more likely.

Complications of a broken hand are rare, but they include:

• Ongoing stiffness, aching or limited movement. While discomfort typically improves after a cast is removed or surgery is completed, some people have lasting pain or stiffness. Be patient with your recovery. Talk to your healthcare professional about exercises or a referral to physical or occupational therapy.
• Osteoarthritis. Fractures that extend into the joint can cause arthritis years later. If your hand starts to hurt or swells long after a break, contact your healthcare professional.
• Nerve or blood vessel damage. A hand injury can affect nearby nerves and blood vessels. If you have numbness, swelling or a change in the color of your skin, seek emergency medical care.

You can't always prevent unexpected events that lead to a broken hand, but these tips may help reduce your risk.