Lower Hamstring Strain: Symptoms, Care and Return to Activity

The hamstrings cross the back of the thigh and help bend the knee and extend the hip. A strain can occur during sprinting, jumping, kicking, or a sudden stretch. Pain may be sharp at the moment of injury, followed by tenderness, stiffness, bruising, or weakness when walking, bending the knee, or accelerating. Pain close to the sitting bone, behind the knee, or in the middle of the thigh can reflect different parts of the muscle-tendon unit. A [Thigh Pain](/symptoms/thigh-pain/) page covers related symptoms. Severity cannot be judged reliably from pain alone; strength, walking pattern, bruising, and function need assessment.

Stop sprinting and movements that cause a sharp pull. For the early period, protect the leg, keep walking within a comfortable limit, and avoid aggressive stretching or repeated strength tests. A physiotherapist can introduce controlled movements, then progressive hamstring and hip strengthening as symptoms settle. [Exercise Therapy](/treatments/physiotherapy-and-rehabilitation/exercise-therapy/) may help restore strength and control. [Sports Physiotherapy](/treatments/physiotherapy-and-rehabilitation/sports-physiotherapy/) can address running mechanics and sport demands. PRP Injection is not a first decision to make without a clinical assessment; discuss possible options only after the injury has been examined.

A [Return-to-Sport Programme](/treatments/physiotherapy-and-rehabilitation/return-to-sport-programme/) should increase speed, range, and sport-specific drills step by step. You should be able to walk, jog, change direction, and perform relevant strength tasks without pain or a protective limp before full training is considered.

Arrange prompt assessment if you heard a pop, developed substantial bruising or swelling, cannot walk normally, or feel marked weakness. Seek urgent care for a deformed leg, severe pain after major trauma, or new numbness or loss of circulation. A clinician should review pain that remains limiting, returns whenever speed increases, or does not improve with a sensible reduction in activity. Early assessment can distinguish a muscle strain from tendon or nerve-related problems.

Ask where the injury is located, how much loading is appropriate now, and which strength tests should wait. Ask what milestones you need before jogging, sprinting, changing direction, and returning to matches. If recurrence is a concern, ask about trunk, hip, and hamstring strength, warm-up habits, and training progression.