Hamstring injury

Also called Pulled hamstring or Hamstring strain

A hamstring injury is a strain or tear of the hamstrings, the group of muscles at the back of the thigh. It is common in sports that involve sprinting, jumping or sudden stops, such as football and running. Injuries range from a mild strain to a complete tear.

Last updated Nov 9, 2026

What it is

Most get better with rest, ice, compression and gentle exercises, followed by gradual return to activity. Mild strains take a few weeks, severe tears can take months.

Warming up and strengthening exercises help prevent it happening again.

Common signs

  • Sudden sharp pain at the back of the thigh
  • A popping or tearing feeling
  • Swelling and bruising
  • Difficulty straightening the leg or putting weight on it

How it is usually diagnosed

  • Examination of the leg
  • Ultrasound or MRI scan, for severe injuries

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Scan reports
  • Physiotherapy notes and exercise plans
  • Sports medicine letters

Questions to ask your doctor

  • How bad is the injury?
  • When can I return to sport?
  • Which exercises will help it heal?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Being unable to walk or bear weight, or a large gap felt in the muscle: get it checked the same day

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources