Forearm Pain: Common Causes, Relief and When to Worry

01Outer

Pain on the outer side: tennis elbow

Lateral elbow pain, or tennis elbow, causes pain on the outer side of the elbow that spreads into the forearm. It hurts when gripping, lifting with the palm facing down, shaking hands, using a mouse or turning a screwdriver. Despite the name, most cases are caused by work and daily activities rather than tennis.

See tennis elbow and extensor tendonitis.

02Inner

Pain on the inner side: golfer’s elbow

Medial elbow pain, or golfer’s elbow, affects the tendons that bend the wrist and fingers. It causes pain on the inner side of the elbow and forearm, worse with gripping, lifting with the palm up and wrist bending. It is common in golfers, climbers, throwers and people doing manual work.

See golfer’s elbow.

03Overuse

Muscle overuse and repetitive strain

• Aching, tightness and fatigue along the forearm after typing, gaming, using tools or playing an instrument.
• Climbers often get forearm muscle strain and tendon problems from gripping.
• Gym exercises with heavy gripping, such as deadlifts and pull-ups, can overload the forearm.
• Symptoms usually improve with rest, breaks and a gradual return to activity.

See hand tendonitis.

04Nerves

Nerve causes

• Carpal tunnel syndrome: tingling in the thumb, index and middle fingers, sometimes with forearm aching, often at night; see carpal tunnel symptoms.
• Ulnar nerve irritation: tingling in the ring and little fingers, worse with the elbow bent.
• Radial tunnel syndrome: aching in the upper outer forearm, sometimes mistaken for tennis elbow.
• Neck problems: a trapped nerve in the neck can cause forearm pain and tingling.

05Injury

Injuries and other causes

• Fractures of the radius or ulna after a fall on an outstretched hand.
• Muscle strains from sudden lifting.
• Bruises from direct blows.
• Wrist problems that cause pain spreading into the forearm; see wrist pain.
• Rarely, blood clots in the arm veins, with swelling and heaviness.

06Relief

What you can do at home

• Reduce or change the activities that cause pain for a while.
• Take regular breaks from typing and gripping, and change grip size if possible.
• Use ice after activity or heat for stiffness.
• Check your desk setup: forearms supported, wrists straight.
• Gentle forearm stretches: wrist extension and flexion with the elbow straight.
• A forearm strap can ease tennis or golfer’s elbow pain during activity.

07Exercises

Exercises that help

Strengthening the forearm muscles is the most effective long-term treatment for tendon problems. A physiotherapist usually starts with isometric holds, then slow wrist curls and reverse curls with a light weight, grip strengthening and forearm rotations with a hammer or light bar, progressing over weeks.

Some discomfort during exercise is acceptable if it settles within 24 hours. Shoulder and upper back strength also matter, especially for people who lift or throw.

08Desk

Desk and device setup

• Keep forearms supported and wrists straight when typing.
• Place the mouse close to the keyboard to avoid reaching.
• Try a larger or vertical mouse if gripping a small one hurts.
• Use keyboard shortcuts and voice typing to reduce clicks.
• Hold your phone with both hands and take breaks from scrolling and gaming.
• Set a reminder to pause and stretch every 30 to 45 minutes.

09Sport

Climbers, racket sports and the gym

Forearm pain is common when climbing, racket or gym training increases quickly. Build volume gradually, vary grips, include rest days and train the opposite muscles that open the hand and lift the wrist. In racket sports, grip size, string tension and technique can make a big difference, and a coach can help.

11Summary

Key points to remember

• Most forearm pain comes from overloaded muscles and tendons.
• Outer pain suggests tennis elbow; inner pain suggests golfer’s elbow.
• Tingling or numbness points to a nerve problem.
• Load changes and progressive strengthening help most cases.