--- title: "Leg pain: What It Means & When to See a GP | HealthAnswers" description: "Leg pain is usually caused by muscle strain or cramps, but one-sided swelling can signal DVT. Learn the common causes, self-care and when to get urgent…" url: https://healthanswers.co.uk/symptoms/leg-pain/ robots: noindex --- # Leg pain: What It Means & When to See a GP | HealthAnswers Symptoms Leg pain is usually caused by muscle strain or cramps, but one-sided swelling can signal DVT. Learn the common causes, self-care and when to get urgent help. 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 leg pain mean? Leg pain is a common symptom that usually follows muscle strain or cramps and settles with rest and gentle stretching. Swelling in one calf can indicate a deep vein thrombosis (DVT) and needs urgent assessment. A leg that suddenly becomes pale and cold is a medical emergency. ## Who is this page for? This page is for people in the UK who want a plain-English overview of Leg pain, including when to seek help and what NHS care usually involves. It explains general information, not what is wrong with you personally. ## Who should skip this page? Skip this page if you need a diagnosis, a prescription, or emergency care. It cannot replace a GP, pharmacist, NHS 111 or 999. If you are in immediate danger, call 999; for urgent advice that is not life-threatening, call 111 in England, Scotland or Wales, or use your GP out-of-hours service in Northern Ireland. On this page 4 sections ## Common causes of leg pain - Muscle strain and cramps are the most common causes of leg pain. - Sciatica is nerve pain that radiates from the back down the leg. - Peripheral arterial disease (PAD) causes calf pain when walking that eases with rest. - A swollen calf on one side may be a sign of deep vein thrombosis (DVT). - A child with a persistent limp should always be checked by a doctor. ## Understanding leg pain Most leg pain is musculoskeletal, meaning it comes from the muscles, tendons, bones or joints. However, pain can also arise from nerve or circulation problems, and it is important that these causes are identified. ## Common causes of leg pain Muscle strain, sciatica and deep vein thrombosis (DVT) are important causes of leg pain. Sciatica causes nerve pain that radiates from the back down the leg, while a DVT typically causes swelling in one calf. Peripheral arterial disease (PAD) causes pain in the calf when walking that eases with rest. It particularly affects smokers and people with diabetes. ## Self-care for leg pain Rest the leg and apply ice after an injury, and try gentle stretching for cramps or muscle tightness. Simple painkillers can help if they are suitable for you — ask a pharmacist for advice. ## When to see a GP about leg pain Persistent leg pain, or symptoms that affect only one leg, such as swelling, should be reviewed by a GP. A child with a persistent limp, night pain or swelling should also be assessed. A suspected DVT or arterial blockage — for example, a leg that suddenly becomes pale and cold — is an emergency, so call 999 or go to A&E. ## ! When to get medical help for leg pain See a GP if leg pain is persistent, or if one leg becomes swollen. Call **999** or go to A&E if a leg suddenly becomes pale and cold, or after severe trauma. Call **111** for urgent advice when you are unsure what to do. ## Common questions about leg pain What causes leg cramps at night? Night-time leg cramps can be triggered by dehydration, pregnancy and some medicines. Gentle stretching and drinking enough fluids may help to relieve them. What is sciatica? Sciatica is nerve pain that travels from the back down the leg. It often comes with tingling in the affected leg. When is leg pain caused by a circulation problem? Calf pain that comes on when walking and eases with rest may indicate peripheral arterial disease (PAD). This condition particularly affects smokers and people with diabetes, and it should be assessed by a GP. When should a child with leg pain see a doctor? A child should be seen by a doctor if they have a persistent limp, leg pain at night, or swelling in the leg. These symptoms always need proper assessment. ## Sources - [NHS — Leg Cramps](https://www.nhs.uk/conditions/leg-cramps) - [NHS — Sciatica](https://www.nhs.uk/conditions/sciatica)