Why Soreness After a Workout Doesn't Always Mean Progress
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In this article
Delayed onset muscle soreness is widely misunderstood. Here's what it actually signals — and what it doesn't — about how your training is going.
Key Takeaways
- Delayed onset muscle soreness (DOMS) is not a reliable indicator of workout effectiveness or muscle growth.
- Feeling less sore over time typically reflects adaptation, not reduced benefit from training.
- Severe or sharp pain after exercise is a warning sign, not a badge of effort.
- Consistent, progressive training — not chasing soreness — drives sustainable fitness gains.
The Soreness Myth That's Holding Exercisers Back
"No pain, no gain" is one of the most persistent ideas in fitness culture — and one of the most misleading. Many people equate post-workout soreness with results, pushing harder specifically to feel it, or feeling discouraged when they don't. This misunderstanding can lead to overtraining, unnecessary injury, and a frustrating cycle of pain with diminishing returns.
Delayed onset muscle soreness, commonly called DOMS, is the achiness and stiffness that peaks roughly 24 to 72 hours after unfamiliar or intense exercise. It's real, it's common, and it does tell you something — but not necessarily what most people think. Understanding what soreness actually signals is key to training smarter and staying consistent over the long term.
Myth
If I'm not sore after a workout, I didn't work hard enough.
Fact
Soreness reflects novelty and muscle damage, not workout quality. Experienced exercisers often train very effectively with minimal soreness.
Soreness is largely a response to unfamiliar movement patterns or loads. As your body adapts to a given routine, the same workouts produce less DOMS — not because they're less effective, but because your muscles have become more resilient. Absence of soreness in a consistent exerciser is generally a sign of healthy adaptation, not insufficient effort.
Myth
More soreness means more muscle growth.
Fact
Muscle growth (hypertrophy) is driven by progressive overload and recovery — not by how sore you feel afterward.
Research has not established a direct causal link between the degree of DOMS and the amount of muscle gained. You can build strength and muscle while experiencing very little post-exercise soreness, particularly once you've been training consistently for several months. Deliberately inducing extreme soreness by drastically increasing volume or intensity can actually impair recovery and slow progress.
Myth
Lactic acid buildup is what causes the soreness you feel the day after exercise.
Fact
Lactic acid clears from muscles within about an hour of exercise and plays no role in delayed onset muscle soreness.
The lactic acid theory of DOMS has been largely overturned. Current research suggests DOMS results from microscopic tears in muscle fibers and the subsequent inflammatory repair process, particularly triggered by eccentric (muscle-lengthening) contractions. This process peaks well after lactic acid has already cleared — typically 24 to 72 hours post-exercise.
Myth
If something hurts after a workout, it's just DOMS and I should push through it.
Fact
Sharp, localized, or joint-based pain is different from DOMS and should not be ignored or trained through.
DOMS typically presents as a diffuse, dull aching in the belly of a muscle — it worsens with movement and generally resolves within a few days. Pain that is sharp, localized to a joint, occurs during (not after) exercise, or persists beyond a week may signal a strain, sprain, or other injury. Pushing through that kind of pain risks making an injury significantly worse. When in doubt, consult a healthcare professional rather than assuming it's routine soreness.
What Research Actually Tells Us About Soreness and Progress
Exercise science has clarified considerably over the past few decades what DOMS represents. The traditional explanation — that lactic acid buildup causes soreness — has been largely set aside by researchers. Lactic acid clears from muscles within an hour or two of exercise; it is not responsible for the soreness you feel the next day. Current understanding points to microscopic damage in muscle fibers and the inflammatory response that follows, particularly after eccentric movements (the lowering phase of a squat or the downswing of a bicep curl).
Importantly, this microtrauma and inflammation is part of a normal adaptive process — but it is not a prerequisite for muscle growth or improved fitness. Studies have found that experienced exercisers can make meaningful strength and hypertrophy gains with little to no post-workout soreness, because their muscles have adapted to handle training stress more efficiently. If you've been following a consistent routine and notice less soreness, that's typically a sign of progress, not stagnation.
If you're returning to exercise after time away, it's worth knowing that DOMS tends to be more pronounced during those early weeks — not because the workouts are more beneficial, but because your body is encountering unfamiliar stress. Our guide to returning to exercise after a long break walks through how to ease back in without overdoing it in that initial phase.
Smarter Signals to Gauge Your Training
If soreness isn't the scoreboard, what should you be tracking? Fitness professionals and exercise researchers generally point to more meaningful markers: progressive increases in strength, endurance, or skill; improved recovery between sessions; and greater ease performing movements that once felt difficult. These are signs your training is working — with or without the ache.
It's also worth noting that chasing soreness can actively undermine your progress. Overloading muscles before they've recovered leads to accumulated fatigue, increased injury risk, and can eventually cause performance to plateau or decline. Our article on signs your workout routine needs adjusting outlines the warning signals that suggest your training may have tipped out of balance.
Rest and recovery are not the opposite of training — they are a core part of it. Muscle repair, neural adaptation, and energy replenishment all happen during recovery periods, not during the workout itself. For a deeper look at why, see rest days are part of the work.
Don't Mistake Injury Pain for Soreness
Sharp, stabbing, or joint-localized pain — especially if it occurs during exercise rather than the day after — is not DOMS. Training through acute or persistent pain risks turning a minor issue into a more serious injury. If pain is severe, sudden, or doesn't improve within a week, seek evaluation from a qualified healthcare professional before continuing to exercise.
This article is for general informational purposes only and is not a substitute for professional medical or fitness advice. If you experience sharp, persistent, or unusual pain during or after exercise, consult a qualified healthcare provider.
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Health & Wellness Editorial Team
Health & Wellness Editorial Team is the collective byline for our editorial team and contributor network. Articles published under this byline or an editorial pen name are researched, written, and reviewed according to our editorial standards for clarity, consistency, and independence before publication.
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