Should You Work Out While Sore?

Usually, yes, but go easier on the sore muscles. Normal post-workout soreness isn't a sign you need complete rest. Research shows light exercise is the most effective way to ease it, at least temporarily. The sensible approach is to lower the intensity for a day or two, or train different muscles until the soreness fades.

Sharp pain, swelling or pain in a joint is different and calls for rest and possibly a doctor. Here's how to tell the difference, how long soreness usually lasts, and what actually helps it go away faster.

What Causes Muscle Soreness After a Workout?

Small amounts of damage to muscle fibers, mostly from unfamiliar exercise or the lowering phase of a lift. That's called delayed onset muscle soreness, or DOMS. It typically builds over a day or two rather than hitting during the workout itself, which is why the second day after leg day often feels worst.

A 2018 review of DOMS in Sportverletzung Sportschaden describes it as a mild form of muscle injury caused by eccentric or unfamiliar exercise, with soreness typically peaking 48 to 72 hours afterwards. Eccentric work is the lowering part of a movement, like the descent of a squat.

A 2003 review in Sports Medicine notes DOMS is most common at the start of a season, after time off, or when trying a new type of exercise. That matches most lifters' experience: a new program hurts far more than week five of the same one.

Is It OK to Work Out When You're Sore?

Yes, for normal soreness, with some adjustments. You can train other muscle groups as usual, or work the sore ones lightly. What you shouldn't do is push a very sore muscle to a hard, heavy session, because soreness reduces your strength and range of motion and can change how you move.

The 2003 review explains that DOMS can lower peak force, limit range of motion and alter how muscles are recruited, which may raise the risk of further injury if you return to hard training too soon. Its practical advice: reduce the intensity and duration of exercise for one to two days after very sore-making sessions, or train less affected body parts.

How you feel	What to do
Mild soreness, full movement	Train normally, warm up well
Moderate soreness in one area	Train other muscles, or go lighter on the sore one
Very sore, limited movement	Light activity only for a day or two
Sharp pain, swelling or joint pain	Rest and get it checked

Does Exercising Help Muscle Soreness?

Yes, temporarily. The 2003 review found exercise is the most effective way to relieve the pain of DOMS, though the relief fades afterwards. That's why soreness often feels better once you've warmed up, then returns later. Light movement like walking, cycling or easy sets can make a sore day more comfortable.

That doesn't mean exercise speeds up the actual repair. It means moving the muscle eases the discomfort while you do it. Gentle activity is a good choice on a sore day; another punishing session on the same muscle is not.

Our guide on how many rest days a week you need covers how to fit lighter days into your week.

How Long Does Muscle Soreness Last?

Most DOMS peaks two to three days after a workout and fades within a few days after that. Mild soreness can be gone in a day or two. If soreness lasts well over a week, gets worse instead of better, or comes with swelling or weakness, it's worth seeing a doctor.

The peak of 48 to 72 hours comes from the 2018 DOMS review. How long it lasts for you depends on how new and how hard the exercise was. A first session after a long break, or a lot of slow lowering work, tends to cause the most.

Once you're back into a routine, the same session usually causes far less soreness. That's the next point.

Why Do You Get Less Sore Over Time?

Because of the repeated bout effect. After you do an unfamiliar exercise once, your muscles adapt so that the same exercise causes less damage and soreness the next time. This protection develops quickly, which is why the first week of a new program is usually the worst.

A 1999 review in Sports Medicine describes the repeated bout effect and attributes it to adaptations in the nervous system, connective tissue and muscle cells. The exact mechanism is still debated, but the effect itself is well established.

The practical lesson from the 2003 review: introduce new or eccentric-heavy exercises gradually over one to two weeks. Easing into a program reduces how sore you get without slowing your long-term progress.

What Helps Muscle Soreness Go Away?

Massage has the best evidence. A meta-analysis of 99 studies found massage was the most effective recovery technique for soreness and fatigue, with active recovery, compression garments, cold water immersion and cryotherapy also helping somewhat. Some popular options, like stretching, showed no clear benefit for soreness.

That 2018 meta-analysis in Frontiers in Physiology ranked recovery methods by their effect on DOMS. The 2003 review reported that stretching, ultrasound and electrical stimulation didn't relieve soreness; how long you should hold a stretch covers what stretching is actually good for.

Basics also matter: enough sleep, enough protein and sensible training volume. Our guide on how many reps and sets to build muscle helps you set a weekly volume you can recover from. Two other popular options are covered in is sauna for muscle recovery worth it and tart cherry juice for muscle recovery.

Should You Take Painkillers for Sore Muscles?

They can take the edge off, but they're not a fix you should need regularly. In research, anti-inflammatory painkillers had dose-dependent effects on soreness, and their timing seemed to matter. If you're reaching for them after most workouts, it's a sign your training is ramping up too fast.

The 2003 review described these mixed but dose-dependent effects for nonsteroidal anti-inflammatory drugs, which include common over-the-counter options. Check with a pharmacist or doctor before using them regularly, especially if you have stomach, kidney or heart concerns or take other medication. Easing into new exercises is a better long-term solution.