---
title: "Muscle pain: When to See a GP | HealthAnswers"
description: "Muscle pain (myalgia) is usually caused by overuse, tension or viral illness and eases with rest — severe pain with dark urine needs urgent review."
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---

# Muscle pain: When to See a GP | HealthAnswers

Symptoms

Muscle pain (myalgia) is usually caused by overuse, tension or viral illness and eases with rest — severe pain with dark urine needs urgent review.

Written by HealthAnswers editorial team Medically reviewed by [HealthAnswers UK doctor review panel](https://healthanswers.co.uk/our-doctors/) Reviewed 3 July 2026

## Quick answer

What could muscle pain mean? Muscle pain (myalgia) is usually caused by overuse, tension, minor injury or viral infections. It often improves with rest, hydration and simple pain relief. See a GP if pain is severe or lasts more than a few weeks, and seek urgent help for widespread pain with weakness or dark urine.

General UK health information, not a diagnosis. In an emergency call 999 ; for urgent advice use [NHS 111](https://111.nhs.uk/) (GP out-of-hours in Northern Ireland).

On this page 4 sections

## Common causes of muscle pain

- Muscle pain often follows exercise, poor posture or physical work.
- Viral illnesses such as flu commonly cause generalised muscle aching.
- Fibromyalgia causes long-term widespread muscle pain and fatigue.
- Statins and some medicines can cause muscle aches — discuss with a GP.
- Dark urine with severe muscle pain may indicate rhabdomyolysis — seek urgent help.

## What is muscle pain?

Muscle pain, or myalgia, can affect a small area or many muscles at once. It may feel like aching, cramping or tenderness and is one of the most common reasons people take painkillers.

Most muscle pain is benign and linked to everyday causes. A small number of cases relate to medicines, metabolic problems or serious muscle breakdown.

## Common causes of muscle pain

Overuse and strain from exercise, lifting or repetitive work are frequent triggers. Poor posture and stress-related tension commonly affect the neck and shoulders.

Viral infections including [flu](https://healthanswers.co.uk/conditions/flu/) and COVID-19 often cause generalised aching. **Fibromyalgia** causes chronic widespread pain with fatigue and sleep problems. Some medicines, notably statins, can cause muscle symptoms.

## Easing muscle pain at home

Rest the affected area briefly, then resume gentle movement. Warm baths, heat packs and stretching may help. [Paracetamol](https://healthanswers.co.uk/treatments/paracetamol/) or ibuprofen can reduce pain if appropriate.

Stay hydrated, especially after exercise. A physiotherapist can advise on posture and strengthening if pain is recurrent.

## When to see a GP about muscle pain

See a GP if muscle pain is persistent or unexplained, if it comes with weakness, or if it seems linked to a new medicine. Dark urine, severe muscle pain after extreme exercise, or rapidly worsening weakness all need urgent medical attention.

## ! When to get medical help for muscle pain

See a GP if muscle pain is severe, lasts more than a few weeks, or is accompanied by weakness, swelling or rash. Call **999** or go to A&E for sudden severe weakness, difficulty breathing, or dark urine with severe pain. Call **111** for urgent advice when you are unsure what to do.

## Common questions about muscle pain

Why do muscles ache after exercise? Muscles often ache after exercise because of delayed-onset muscle soreness (DOMS), which peaks 24–48 hours after unfamiliar or intense exercise as the muscles repair. It is normal and improves with light movement and rest. Can stress cause muscle pain? Yes, stress can cause muscle pain, because tension and anxiety often lead to tightness in the neck, shoulder and back muscles. Relaxation, stretching and addressing the stress itself can all help, alongside treating any underlying mood symptoms. When could muscle pain be serious? Muscle pain could be serious if it is severe and comes with dark urine or significant weakness, or if it starts after beginning a new medicine such as a statin. These situations may need immediate assessment, so seek urgent help. What helps general muscle aches from a cold or flu? Rest, plenty of fluids, gentle stretching and simple pain relief with paracetamol or ibuprofen (if suitable for you) usually help the muscle aches that come with a cold or flu. Symptoms typically improve as the infection clears.

## Sources

- [NHS — Joint And Muscle Pain](https://www.nhs.uk/conditions/joint-and-muscle-pain)
- [NHS — Fibromyalgia](https://www.nhs.uk/conditions/fibromyalgia)

## How we reviewed this page

Medically reviewed by the [HealthAnswers UK doctor review panel](https://healthanswers.co.uk/our-doctors/)

First published 28 June 2026 Medically reviewed 3 July 2026 Next review due 3 July 2029 or sooner if NHS or NICE guidance changes

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