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Muscle Soreness After Workout: Identify Your Pain Type and Fix It

Athlete sitting on floor gripping knee in pain after workout
Athlete sitting on floor gripping knee in pain after workout

Last updated: March 2026

Most workout soreness guides assume you have DOMS. They give you eight recovery tips and send you on your way. The problem: not all workout pain is DOMS. Back pain during ab exercises, wrist pain during pressing, and arm stiffness after bicep training are three different things with three different causes — and three different fixes.

This guide helps you identify which type of workout pain you’re dealing with, explains what’s causing it, and gives you the specific fix for each.


Step One: Identify Your Pain Type

Pain Type When It Starts Where You Feel It What It Means
DOMS (muscle soreness) 12–48 hours after workout The muscles you trained Normal — muscles rebuilding
Technique-related pain During the exercise Back, neck, or joints — not the target muscle Form problem — fixable
Overuse or injury pain During or immediately after Joints or tendons (wrist, elbow, knee) Overuse or injury — needs rest
Warning sign During or after — severe Sharp, does not improve with rest See a doctor

Type 1: DOMS — Normal Muscle Soreness

Delayed onset muscle soreness (DOMS) is the ache and stiffness you feel in a muscle you’ve trained hard — typically 12–48 hours after your session. It is the most common type of post-workout pain and the only one that is expected and normal.

Why It Happens

When you train — particularly with unfamiliar movements or higher intensity than usual — you create microscopic tears in your muscle fibres. Your body responds with inflammation, sends blood and nutrients to the area, and begins repair. DOMS is the sensation of that inflammatory response. The result of the repair cycle is stronger, larger muscle fibres — which is the goal.

Eccentric movements cause the most DOMS. These are exercises where a muscle resists a load while lengthening:

If you can’t fully straighten your arm after a bicep session, or your legs give out on stairs after leg day — that’s DOMS. It’s your body doing exactly what it should.

How Long Does It Last?

If soreness is still worsening after 5 days or has not resolved within 7, it is no longer DOMS — see a healthcare provider.

How to Recover

Should You Train Through DOMS?

It depends on severity. If soreness is mild — a 1–3 out of 10 — training is fine, though you should reduce intensity. Above a 5, train a different muscle group and let the sore one recover. If pain increases during a warm-up rather than fading, stop the session.

Related Reading

How Often Should I Workout to Build Muscle? →

Type 2: Back Pain During Ab Workouts — A Technique Problem

If your lower back hurts during or immediately after ab exercises — not 24–48 hours later, but right then — this is not DOMS. It is a form or muscle imbalance issue, and treating it like soreness will not fix it.

Why It Happens

The most common cause: the wrong muscles are doing the work. During sit-ups, leg raises, and crunches, the lower back and hip flexors can take over if the core is not properly engaged. When that happens, the lumbar spine absorbs forces it is not designed to handle.

Specific causes:

The Fix: Exercises That Build Core Without Loading the Back

For your existing exercises: slow the pace, reduce the range of motion, and focus on feeling the abs contract before initiating any movement. If your lower back still loads, the exercise is too advanced for your current core strength — regress until it isn’t.

When to See a Doctor

See a healthcare provider if you have sharp or localised lower back pain, pain that radiates down one or both legs, or pain that persists after rest and technique correction.


Type 3: Wrist Pain During Lifting — Overuse and Technique

Wrist pain during exercise is not DOMS and should not be trained through. It signals either a technique problem, cumulative overuse, or an underlying condition — all of which have different solutions.

Common Causes

The Fix

When to See a Doctor

See a healthcare provider if pain is persistent outside of training, if you have swelling or bruising around the wrist, if there is limited range of motion that does not improve with rest, or if pain appeared suddenly after a fall or impact.


Warning Signs: When Workout Pain Needs Medical Attention

Most workout pain is harmless. These are the exceptions.

Rhabdomyolysis

Rhabdomyolysis (“rhabdo”) is a rare but serious condition where severe muscle breakdown releases an enzyme (creatine kinase) into the bloodstream in quantities that can damage the kidneys. It typically occurs when someone pushes far beyond their current fitness capacity — usually by jumping into extreme exercise without building up to it gradually.

Signs that distinguish rhabdo from normal DOMS:

If you have dark urine after a workout, go to the emergency room that day. Do not wait for it to improve.

Other Warning Signs


How to Reduce Workout Soreness Over Time

The most effective way to minimise soreness is progressive overload done at the right pace. Your muscles adapt to training stress over time — which means each session should build on the last without leaping ahead of what your recovery can handle.

If your goal is building muscle while managing soreness and recovery effectively, understanding your body recomposition targets helps you set the right training intensity without tipping into overtraining:

Set your body recomposition targets

Build muscle and manage body fat with targets matched to your training capacity and recovery ability.

Calculate your body recomposition targets →

The Bottom Line

DOMS — the delayed soreness that peaks 24–72 hours after a hard session — is normal, harmless, and a sign your muscles are adapting. Manage it with light movement, foam rolling, hydration, protein, and sleep. It resolves on its own within 3–5 days.

Back pain during ab exercises and wrist pain during lifting are different problems. Both are usually technique or overuse issues that rest alone will not fix — they need form correction or load management.

Use the diagnostic table at the top to identify which type of pain you have. Apply the right fix. If pain is severe, not improving, or accompanied by dark urine or significant swelling, see a healthcare provider.

Dennis Kiplimo
Written by
Dennis Kiplimo

Dennis Kiplimo is a graduate of Kabarak University, Nakuru, Kenya, with a BSc in Nursing. He is a fitness enthusiast and a Health & Fitness Writer on Medium. He currently works as a nurse in Finland.

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