Leg pain has dozens of possible causes, but most cases come down to wear and tear, overuse, or minor injury to muscles, tendons, or joints. The location of your pain, when it happens, and what makes it better or worse are the best clues to figuring out what’s going on. Here’s a breakdown of the most likely explanations and how to tell them apart.
Muscle Strains, Sprains, and Overuse
The single most common reason for leg pain is a soft tissue injury. Muscle strains (small tears in muscle fibers or the tendons connecting muscle to bone), sprains (stretched or torn ligaments around a joint), and general overuse account for the majority of cases. You might not remember a specific moment of injury. Sometimes it’s just too much walking, a harder workout than usual, or spending hours on your feet on a hard surface like concrete.
Shin splints fall into this category too. They happen when the muscles, tendons, and tissue around your shinbone become irritated and inflamed, usually from running or repetitive impact. The pain runs along the front of your lower leg and tends to worsen with activity.
For these kinds of injuries, the standard approach is rest, ice, compression, and elevation. Ice works best in short 10-minute intervals to reduce pain and constrict blood vessels. Elevation helps if you have noticeable swelling. Most soft tissue injuries improve within days to a couple of weeks with basic self-care.
Where the Pain Is Matters
The location of your leg pain narrows the possibilities considerably. Calf pain that starts during walking or exercise and stops when you rest points toward either a muscle issue or a circulation problem. Pain along the shin usually means shin splints or a stress reaction in the bone. A burning sensation isolated to the outer thigh suggests a compressed nerve in that area, a condition called meralgia paresthetica.
Joint pain in the knee, hip, or ankle is more likely related to arthritis, gout, or an infection. Arthritis causes stiffness and inflammation that tends to be worse in the morning or after sitting still. Gout produces sudden, intense swelling and pain, often in a single joint. If a joint is red, hot, and painful, especially with a fever, that could signal an infection that needs prompt medical attention.
Poor Circulation and Artery Disease
If your leg pain consistently shows up when you walk and disappears when you stop, reduced blood flow may be the cause. Peripheral artery disease (PAD) narrows the arteries supplying your legs, so your muscles don’t get enough oxygen during activity. The result is cramping or aching, most commonly in the calves, though it can affect the thighs and hips too.
PAD pain ranges from mild to severe. In early stages, it only appears with exertion like walking or climbing stairs. As the condition progresses, the pain can wake you from sleep or occur even at rest. Risk factors include smoking, diabetes, high blood pressure, and high cholesterol. PAD is a circulatory problem that shares the same underlying process as heart disease, so it’s worth taking seriously even if the pain seems manageable.
Vein Problems and Blood Pooling
Your veins have one-way valves that push blood back up toward your heart. When those valves weaken, blood pools in your lower legs, a condition called chronic venous insufficiency. This creates a heavy, tight feeling in your calves, along with swelling in the legs or ankles, varicose veins, itchy or painful skin, and sometimes brownish discoloration near the ankles. The discomfort typically worsens after standing for long periods and improves when you elevate your legs.
Over time, venous insufficiency can lead to leg ulcers that are difficult to heal and painful muscle spasms. It can also contribute to restless legs syndrome, that uncomfortable crawling sensation that makes you feel compelled to move your legs, especially at night.
Nerve-Related Leg Pain
Two common nerve problems cause leg pain, and they feel quite different from each other.
Sciatica happens when the large nerve running from your lower back down through your hip and leg gets compressed or irritated, usually by a herniated disc or bone spur in the spine. It produces shooting pain, numbness, or tingling that travels from the low back into the hip and down the back of one leg. Sitting typically makes it worse, and moving around often brings some relief. It almost always affects just one side.
Peripheral neuropathy is damage to the nerves themselves, often from diabetes or poor circulation. It causes constant numbness, tingling, or pain that doesn’t change much with position. Your feet and lower legs may become unusually sensitive to touch. Even the pressure of socks or shoes can feel uncomfortable. Unlike sciatica, neuropathy tends to affect both legs and doesn’t ease up with movement.
Spinal Stenosis
As people age, the spinal canal can gradually narrow and press on the nerves traveling to the legs. This is spinal stenosis, and it causes pain or cramping in one or both legs when you stand for a long time or walk. The hallmark sign is that the pain gets better when you lean forward or sit down. Bending forward opens up the spinal canal slightly and takes pressure off the nerves. If you notice that pushing a shopping cart (which tilts you forward) feels much better than standing upright, spinal stenosis is a strong possibility.
Leg Cramps at Night
Nighttime leg cramps are extremely common, especially as you get older. Your tendons naturally shorten with age, making cramps more likely. About 40% of pregnant people experience them too, likely because the extra weight puts additional strain on leg muscles.
Other contributing factors include dehydration, low potassium levels, sitting for long periods during the day, poor posture, and standing on hard floors. Several common medications list leg cramps as a side effect, including diuretics (water pills), statins (cholesterol medications), and certain antidepressants and anti-anxiety drugs. Underlying conditions like diabetes, kidney problems, flat feet, and peripheral artery disease also increase your risk.
Nighttime cramps are different from restless legs syndrome. Cramps produce sudden, intense tightening of the muscle. Restless legs syndrome feels more like a crawling or pulling sensation that creates an irresistible urge to move. Moving your legs relieves the restlessness but not necessarily the underlying discomfort.
Warning Signs of a Blood Clot
Deep vein thrombosis (DVT) is a blood clot in a deep vein, usually in the leg. It requires urgent medical evaluation because the clot can break loose and travel to the lungs. The key signs that distinguish DVT from ordinary leg pain are: swelling in one leg (not both), pain or soreness that often starts in the calf, a change in skin color to red or purple on the affected leg, and warmth in that specific area.
Your risk is higher if you’ve been immobile for an extended period, such as after surgery, a long flight, or bed rest. Active cancer treatment, a history of previous blood clots, and recent leg immobilization (like a cast) also raise the likelihood. If you have swelling, warmth, and discoloration concentrated in one leg, get it evaluated promptly rather than waiting to see if it resolves on its own.