Sore elbows almost always come down to one of a few common causes: tendon irritation from repetitive motions, inflammation of the fluid-filled sac that cushions the joint, nerve compression, or arthritis. The good news is that most elbow pain resolves without surgery, though healing can take anywhere from a few weeks to a full year depending on the cause.
Tendon Overuse: The Most Common Culprit
The two most frequent causes of elbow soreness are tennis elbow and golfer’s elbow, and you don’t need to play either sport to get them. Both are caused by damage to the tendons that connect your forearm muscles to the bony bumps on either side of your elbow. The difference is which side hurts.
Tennis elbow (lateral epicondylitis) causes pain on the outside of your elbow. It’s common in people who do a lot of gripping, twisting, or extending their wrist: think using a screwdriver, typing, or carrying heavy bags with a straight arm. Golfer’s elbow (medial epicondylitis) hits the inside of the elbow and tends to come from forceful wrist and finger motions like lifting weights with curled wrists, throwing a football, or doing construction and carpentry work. For golfer’s elbow to develop, the aggravating activity generally needs to be done for more than an hour a day over many days.
Both conditions start as a dull ache that gets worse when you grip things or twist your forearm. You might notice it most when opening jars, shaking hands, or lifting a coffee mug. The soreness can radiate down into your forearm. Most cases respond to rest, icing, rehab exercises, and a counterforce brace, but the tendon itself takes 6 to 12 months to fully heal, even though you’ll likely feel noticeably better within a few weeks. About 9 out of 10 people recover fully with conservative treatment alone.
Bursitis: Swelling at the Tip of the Elbow
If your soreness comes with visible swelling right at the point of your elbow, you may have olecranon bursitis. A bursa is a small fluid-filled sac that acts as a cushion between bone and skin. When it gets irritated, it fills with extra fluid and the back of your elbow can puff up like a golf ball.
More than two-thirds of bursitis cases are non-infectious, caused by either a direct blow to the elbow (bumping it hard on a table, for instance) or prolonged pressure from leaning on your elbows at a desk. Repetitive motions from work or hobbies can also trigger it. You’ll feel pain when you bend your elbow or press on the swollen area.
Occasionally, the bursa becomes infected. Septic bursitis causes redness, heat, and swelling over the elbow, sometimes with a fever. If you notice spreading redness up or down your arm, or you develop a fever along with elbow swelling, that warrants urgent medical attention and antibiotics.
Nerve Compression: Tingling Into Your Fingers
If your elbow soreness comes with numbness or tingling in your ring finger and pinky, the problem is likely your ulnar nerve. This is the nerve responsible for that sharp, electric jolt you feel when you hit your “funny bone.” It runs through a narrow tunnel of tissue behind the inside of your elbow, and when that tunnel gets too tight or the nerve slides back and forth repeatedly, you develop cubital tunnel syndrome.
Sleeping with your elbows bent tightly is one of the most common triggers. So is leaning on your elbows for long stretches or doing repetitive bending at the elbow throughout the day. The numbness and tingling typically get worse at night. Over time, the weakness can progress to the point where you have trouble gripping objects or opening jars. Keeping your elbow straighter during sleep (some people wrap a towel around the joint) and avoiding prolonged pressure on the inside of the elbow are the first steps in managing it.
Arthritis in the Elbow
Elbow arthritis is less common than knee or hip arthritis, but it does happen, particularly in people with a history of elbow injuries or those with rheumatoid arthritis. The two types feel different. Osteoarthritis produces an aching, tender joint with little visible swelling, and morning stiffness that typically lasts less than an hour. It tends to flare after periods of activity and again at the end of the day. Rheumatoid arthritis causes more obvious swelling and stiffness that persists for longer than an hour each morning, often affecting both elbows symmetrically along with other joints.
With osteoarthritis, you might notice a grating or catching sensation when you bend and straighten your arm, especially if loose fragments of cartilage are floating in the joint. Rheumatoid arthritis tends to feel more like a deep, persistent ache with warmth around the joint. Both types progressively limit your range of motion if left unmanaged.
What You Can Do at Home
For fresh soreness that started within the last day or two, ice is your best first move. Apply an ice pack with a cloth barrier for 10 to 20 minutes every hour or two during the first eight hours after the pain begins. After that initial window, gentle movement and avoiding the aggravating activity matter more than continued icing.
If your soreness is tied to desk work, a few adjustments can make a real difference. Position your keyboard directly in front of you with your wrists extended straight, not angled up or down. Resist the temptation to raise the back of your keyboard, which actually increases wrist strain. Keep your mouse close enough that you’re not repeatedly reaching for it, and aim to keep your elbows bent at roughly 90 degrees while you type. Clearing clutter from your desk reduces the amount of reaching and extending you do throughout the day.
For tendon-related pain, a counterforce brace (the kind that wraps around your forearm just below the elbow) can take pressure off the irritated tendon during daily activities. Eccentric strengthening exercises, where you slowly lower a light weight with your wrist, are one of the most effective rehab strategies for both tennis elbow and golfer’s elbow. Starting these too aggressively can make things worse, so begin with very low resistance.
Signs That Need Medical Attention
Most elbow soreness is manageable on your own, but certain symptoms point to something more serious. Redness and warmth spreading from the elbow, especially combined with a fever, suggest an infection that needs antibiotics. Inability to bend or straighten your elbow at all, visible deformity after an injury, or pain that wakes you from sleep and doesn’t respond to rest over several weeks are all reasons to get the joint evaluated. Numbness in your fingers that’s getting progressively worse also deserves attention before the nerve sustains lasting damage.