But aching hands can transform the simplest task into a painful ordeal. Hands can hurt for a variety of reasons, from the mechanical to the neurological. Arthritis — which affects one in five American adults — and other persistent joint problems are by far the most common cause of hand pain and disability.

There are many ways — including medications and surgery — to get hands back to work. One of the most important ways is through therapeutic exercises.

Some exercises help increase a joint’s range of motion, while strengthening muscles around the joint. Some commonly recommended hand exercises follow. If you have a serious hand, wrist, or arm injury, consult your doctor before leaping into the routines below. All exercises should be done slowly and deliberately, to avoid pain and injury. If you feel numbness or pain during or after exercising, stop and consult a therapist.

Stretching exercises

Stretching helps lengthen muscles and tendons. Some repetitive tasks, such as typing on a computer or gripping gardening tools, can shorten muscles and leave them tight and painful. Do these stretches gently, until you feel the stretch, but without pain. Hold the positions for a count of 15 to 30 seconds to get the most benefit. These exercises are particularly helpful for tendinitis and tight forearm muscles, which are common in people who do a lot of computer work.

For each of these exercises, do a set of four repetitions, twice a day. Hold the stretch for 15 to 30 seconds and rest for 30 seconds between each repetition.

Wrist extensor stretches
1.	Hold one hand at chest level with the elbow bent.
2.	With the other hand, grasp the thumb side of the hand and bend your wrist downward.
3.	To increase the stretch, bend your wrist toward your little finger.
4.	Repeat the same exercise with a straight arm.
5.	Switch hands and repeat.

Wrist flexor stretches
1.	Hold one hand at chest level with the elbow bent.
2.	Grasp the fingers of that hand with the other.
3.	Pull the hand back gently.
4.	Repeat the same exercise with a straight arm.
5.	Switch hands and repeat.

Resisted isometrics

These exercises work muscles against resistance. Hold each position for 10 seconds. Complete one set of 10 repetitions once or twice a day.

Isometric wrist extension
1.	Hold one hand palm down on a table or other surface. Put your other hand on top of it.
2.	Try to raise the lower hand, but don’t allow it to move.
3.	Switch hands a repeat.

Isometric wrist flexion

Follow the same steps as above, but with your palm facing up.

For more information on the causes and treatment of hand pain, and strengthening strategies for hands, buy Hands: Strategies for Strong, Pain-Free Hands by Harvard Medical School.