Thigh injuries are usually acute or sudden onset injuries. Muscle injuries such as groin strain, pulled hamstring (hamstring strain), and quad strain (thigh strain) are the more common thigh injuries. Thigh pain that comes on gradually is often an overuse injury, such as groin tendonitis or inflammation.

Common Symptoms:

  • Bruising
  • A tender point can be felt in the thigh muscle
  • Pain on straightening the knee against resistance
  • A hard lump can be felt in the muscle
  • Pain at the back of the thigh
  • Pain in the lower back
  • Pain in the buttock
  • Difficulty straightening the knee
  • Muscle spasms
Quad Strain
This is a tear in one of the four quadriceps muscles at the front of the thigh. Symptoms include sharp pain in the thigh at the time of injury. Swelling and bruising may occur, but not always.
Myositis Ossificans
This is the development of a bony growth within a muscle following a contusion that is not treated correctly in the first place. Symptoms include pain in the muscle when it is exercised, and a hard lump may be felt.
Quad Contusion
A contusion is a hematoma (bleeding in the muscle) caused by a direct impact. It is important that initial first aid treatment is applied or complications and further injury such as myositis ossificans may occur.
Hamstring Strain
This is a tear in one of the three hamstring muscles at the back of the thigh, usually during sprinting. Symptoms include sudden sharp pain in the muscle. Initial first aid and application of cold therapy are essential.
Hamstring Contusion
This is a bruising (a hematoma) in the hamstrings caused by a direct impact. The muscle is crushed against the bone causing bleeding and damage. Correct treatment is essential if complications and further injury are to be avoided.
Hamstring Tendinitis
An overuse injury of the hamstring tendon, causing pain in the back of the thigh at the top just below the buttock. This pain may come on gradually, particularly after a hard training session.
Femur Fracture
A break of the femur (thigh) bone caused by a fall, a force, or direct impact.
Femur Stress Fracture
A stress fracture that develops gradually due to overuse.

Informational Forms