Sore muscles after a workout are a normal part of getting stronger. The soreness you feel one to two days later is called delayed onset muscle soreness, or DOMS. It happens when exercise causes tiny tears in muscle fibers, and it usually fades on its own within a few days. You can ease the discomfort with gentle movement, good sleep, adequate protein, and time.
What Causes Soreness After a Workout?
The burning you feel during a hard set is not the same as the soreness you feel the next day. That next-day ache is delayed onset muscle soreness, and it has a specific cause.
DOMS happens when you challenge your muscles in ways they are not used to. The muscle fibers develop small tears, and the surrounding tissue becomes inflamed as your body repairs the damage. This is why a new exercise routine, a heavier weight, or an unfamiliar movement pattern often leaves you sorest.
Eccentric movements — the “lowering” phase of a lift, or running downhill — tend to cause the most soreness. Your muscle lengthens under tension during those movements, which creates more microscopic damage than shortening contractions do.
The soreness typically peaks between 24 and 72 hours after exercise. It is not a sign that you did something wrong. It is a sign your muscles are adapting.
How Long Does Muscle Soreness Last?
Most soreness resolves within three to five days. The worst of it usually hits on day two.
The timeline depends on how unfamiliar the exercise was and how much damage occurred. A first-ever leg day might leave you sore for four days. A routine session you have done many times might cause almost none.
If soreness lasts longer than a week, or if it comes with dark urine, severe swelling, or weakness that does not improve, that is a reason to seek medical care. Those symptoms can signal a rare but serious condition called rhabdomyolysis, where muscle breakdown releases contents into the bloodstream that can damage the kidneys. It is uncommon, but it is worth knowing the warning signs.
How To Help With Soreness After A Workout
No single remedy erases soreness. What works is a combination of habits that support recovery and reduce discomfort while your muscles repair.
Move gently
Light activity increases blood flow to sore muscles, which may help them feel better. A walk, a slow swim, or easy cycling at a comfortable pace is usually enough. This is sometimes called active recovery. It will not make the soreness vanish, but many people find it takes the edge off.
Get enough protein
Your body needs protein to repair muscle tissue. General sports nutrition guidance suggests spreading protein across the day rather than loading it all into one meal. Most active adults do well with a protein source at each meal. This supports the repair process, though it will not stop soreness from happening.
Sleep is the real recovery tool
Most muscle repair happens while you sleep. Sleep is when your body releases growth hormone and does the bulk of its tissue rebuilding. Cutting sleep short slows recovery and can make soreness feel worse. This is the least glamorous advice and probably the most effective.
Stay hydrated
Dehydration can make muscle aches feel worse. Drinking water throughout the day supports normal muscle function. There is no special amount that specifically targets DOMS, but staying hydrated is basic good practice.
Consider heat or cold
Warm showers or baths can relax tight, sore muscles and feel soothing. Cold packs may reduce swelling and numb a specific painful area. The evidence on which one works better for DOMS is mixed, and neither appears to speed up actual muscle repair. Use whichever feels better to you.
Does Stretching or Foam Rolling Help?
Stretching before or after a workout does not appear to prevent soreness. Studies have generally found little to no effect on DOMS from static stretching.
Foam rolling is a different story, though the evidence is not strong. Some studies suggest foam rolling before or after exercise may reduce how sore you feel, but the effect is modest and the research quality varies. It is unlikely to cause harm and many people find it feels good, so it can be a reasonable addition to a recovery routine. Just do not expect it to eliminate soreness.
Massage has similar findings. Some research indicates it may reduce soreness perception, but the effect is small and temporary.
What About Pain Relievers and Supplements?
Over-the-counter pain relievers like ibuprofen can reduce soreness, but there is a trade-off worth understanding. Some research suggests that blocking inflammation with these drugs may interfere with the muscle adaptation process. The inflammation is part of how your muscle gets stronger. Using pain relievers occasionally for significant discomfort is reasonable, but making them a routine part of every workout recovery may work against your goals.
Acetaminophen can ease pain without the same anti-inflammatory action, which may make it a better choice if you need relief. Follow the dosing instructions on the label carefully — acetaminophen can harm the liver in high doses.
Supplements marketed for recovery are a mixed bag. Some evidence supports tart cherry juice and certain other antioxidant-rich foods for reducing soreness perception, but results vary and the effects are generally small. Branched-chain amino acids, or BCAAs, are widely sold for recovery. The evidence that they reduce soreness is weak, and most people get enough of these amino acids from a normal diet. No supplement has been shown to reliably prevent or cure DOMS.
Can You Prevent Soreness in the First Place?
You can reduce it, but you cannot avoid it entirely — especially when you are doing something new.
The most reliable strategy is to increase your training gradually. Adding too much weight, too many reps, or too many new exercises at once is what causes the worst soreness. Give your muscles time to adapt to one change before adding another.
Warming up before exercise raises muscle temperature and prepares the tissue for work. It will not stop DOMS, but it supports better performance and may reduce injury risk.
Consistency matters more than any single recovery trick. Muscles that are regularly challenged in similar ways become more resistant to soreness over time. The first week of a new program is almost always the sorest. It gets better.
When Soreness Is Something More
Normal soreness is a dull, achy feeling in the muscle itself. It is tender to touch and gets better with movement.
Pain that is sharp, located in a joint, or that worsens with activity may be an injury rather than DOMS. So can pain that appears suddenly during a workout rather than hours later.
See a doctor if you have:
- Severe pain that limits normal movement
- Swelling that gets worse instead of better
- Dark or cola-colored urine
- Muscle weakness that does not improve
- Soreness lasting more than a week
These signs do not automatically mean something serious, but they are worth a medical evaluation rather than waiting it out.
Frequently Asked Questions
How long does soreness last after a workout?
Most soreness peaks between 24 and 72 hours after exercise and fades within three to five days. If it lasts more than a week or comes with dark urine or severe swelling, see a doctor.
Should I work out if I am still sore?
Light activity is usually fine and may help you feel better. If the soreness is severe or affects a specific muscle group, it is reasonable to rest that area and train something else.
Does stretching prevent muscle soreness?
Research has generally found that static stretching does not prevent or significantly reduce delayed onset muscle soreness. It can still be part of a warm-up for other reasons.
What is the fastest way to get rid of sore muscles?
There is no fast fix — soreness resolves on its own as your muscles repair. Sleep, adequate protein, hydration, and gentle movement support the process but do not speed it up dramatically.
