Posterior Thigh Pain (Back)

Posterior thigh pain

Pain at the back of the thigh is known as posterior thigh pain. Here we explain the common, and less common injuries and causes of hamstring/posterior thigh pain.


Click headings below to expand:

Sudden onset/acute posterior thigh pain

The following are causes of sudden onset or acute pain at the back of the thigh:

Pulled hamstring/hamstring strain

Hamstring strain

Hamstring strains are very common in sport. They usually occur either from sprint related activities, or from overstretching the muscles. Symptoms include:

  • Sudden onset pain at the back of the thigh.
  • Hamstring strains are graded one to three depending on how bad they are.
  • A mild strain can simply be tightness in the muscle.
  • However, if you have a more severe strain then you will be unable to continue playing and be in severe pain.

Cramp in the hamstrings

Hamstring cramp

Cramp is a painful involuntary contraction of the muscle. It is very common in the hamstring muscles. Symptoms consist of:

  • A sudden involuntary muscle spasm at the back of your thigh.
  • Significant pain.
  • You will find it very difficult to relax the muscle and straighten your leg.
  • Cramp often follows a bout of hard, or unacustomed exercise.

Hamstring contusion

Hamstring contusion

A hamstring contusion involves a direct blow to the back of your thigh. Symptoms include:

  • Pain at the back of the thigh, particularly at the point of impact.
  • You may or may not have noticeable swelling depending. This depends on how bad your injury is.
  • Bruising also may or may not develop. This depends on the type of contusion and tissue damage.

Hamstring tendon avulsion

An avulsion strain occurs when the tendon tears, pulling a small part of the bone away with it.

This is more common in younger athletes aged 14 to 18 years old. Or in older people who may have had a history of chronic hamstring tendinitis.

if you are a young athlete and have severe pain at the back of your thigh, specifically at the top, you should always suspect an avulsion strain. As a result, seek professional advice.

An X-ray or bone scan will be needed to confirm the diagnosis.

Gradual onset/chronic posterior thigh pain

The following injuries cause graual onset pain at the back of the thigh. You are unlikely to be able to pinpoint a specific time when your injury occured.

Referred hamstring pain

Pain in the hamstring region can actually originate from your lower back, sacroiliac joints or buttocks. This results in ymptoms of:

  • Gradual onset pain at the back of your thigh.
  • Pain is usually less severe than a hamstring strain, although you may feel occasional acute ‘twinges’.
  • The slump test, which is used to test tension in the sciatic nerve is likely to be positive, but not in all cases.


Hamstring tendonitis (or tendinopathy) occurs at the origin of the hamstring muscles. More specifically, at the ischial tuberosity of the pelvis.

Bursitis is inflammation of the small sac of fluid between the tendon and bone. It is often difficult to distinguish between the two. Symptoms include:

  • Pain just under the crease of the buttocks.
  • You may have tenderness and thickening of the tendon at the site of pain.

Tight hamstring muscles

Although not a specific injury, nor a cause of posterior thigh pain, tight hamstring muscles are common in athletes. Most of the time will not cause a problem.

However, if you have tight hamstrings you may be more prone to other problems such as back pain and postural issues. As a result, you are not training and competing at full capacity.

Posterior compartment syndrome

Compartment syndromes occur when the muscle swells up too big for the sheath that surrounds it. As a result, pressure increases causing pain. Symptoms include a dull pain in the back of the thigh, cramp, and weakness.

It is caused either by overuse as might be seen in endurance runners or repeated trauma from redcurrant hamstring strains.

Surgery is thought to be the most effective form of treatment.

Other injuries causing posterior thigh pain

Other injuries causing pain at the back of the thigh which should not be missed include Myositis ossificans, Tumors, and Iliac artery

Futher information & research

  • Posterior Thigh Muscle Injuries in Elite Track and Field Athletes. Nikolaos Malliaropoulos, MD, MSc, PhD, Emmanuel Papacostas, MD, Olga Kiritsi, MD, Am.J.SportsMed.

Recommended products

We recommend the following products to help treat Hamstring strains:

Cold wrap

Cold Therapy Compression Wrap

Cold therapy is important for reducing pain and swelling. A reusable gel pack can be used for both hot and cold and an elastic sleeve enables easy application and compression.

Thigh Support

Supports and protects your muscle while it is headling as well as helping to reduce pain and swelling. Retains heat later in the rehabilitation process.

Foam roller for calf muscle

Foam Roller

A foam roller is an excellent piece of kit which can be used in place of massage to treat muscle injuries. They are also excellent when use regularly as part of your warm up.

Resistance bands

Resistance Bands

Resistance bands are important for most sports rehabilitation and enable you to exercise any muscle from the comfort of your own home.

Hamstring strain Rehabilitation Program

Our step by step rehabilitation program takes you from initial injury to full fitness.

Iphone app

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