Hip flexor strain

Symptoms of a hip flexor strain vary depending on how severe the injury is. Common signs include: 

• Sudden pain in the front of the hip or groin
• Tenderness, swelling or bruising near the upper thigh
• Stiffness or reduced range of motion
• Weakness or difficulty lifting the leg
• A pulling or snapping sensation at the time of injury
• Pain that worsens with walking, climbing stairs or running 

Mild strains may improve with rest, while more severe injuries can cause lasting pain and difficulty walking if not properly treated. 

Hip flexor strains typically happen when the muscle is forced to stretch or contract suddenly. Common causes include: 

• Sudden movements such as sprint starts, high kicks or abrupt stops
• Repetitive motion or overuse, particularly in sports like soccer, running or dance
• Poor flexibility or posture that places added stress on the hip joint
• Direct trauma or a quick change in direction that overstretches the muscle
• Muscle fatigue or imbalance between the hip flexors and surrounding muscles 

Tight or weak hip flexors, especially when combined with an inadequate warm-up, can significantly increase the risk of injury.

Certain factors can make a hip flexor strain more likely, though having one or more of these does not mean you'll experience an injury: 

• Participating in sports that involve sprinting, kicking or quick direction changes
• Tight or weak hip flexor muscles
• Poor flexibility or posture
• Muscle fatigue or imbalance between hip flexors and surrounding muscles
• Skipping a proper warm-up before activity 

Knowing your risk factors can help you and your care team take steps to protect your hip health. 

Our orthopedic and sports medicine providers take a patient-centered approach to diagnosing a hip flexor strain. Your evaluation may include a review of your symptoms and activity level along with a physical exam to assess strength, flexibility and tenderness. 

X-rays may be used to rule out fractures or joint abnormalities. If needed, advanced imaging such as MRI or ultrasound provides a clearer view of the muscle tissue and helps determine the extent of the injury. Hip flexor strains are categorized by severity, from mild overstretching to a complete muscle tear, which helps guide the right treatment approach. We explain your diagnosis clearly, so you understand your options and next steps.