Condition guide
Hip Flexor Strain: Symptoms, Recovery and Hip Flexor Physio
A hip flexor strain is an injury to the muscles at the front of the hip that lift your thigh towards your body. It usually happens with a sudden sprint, a kick or a quick change of direction, and causes pain at the front of the hip or upper thigh when you lift the knee. Hip flexor physio aims to work out how much of the muscle is involved and rebuild strength gradually so you can get back to sport and daily activity. This page is general information rather than a diagnosis, and an assessment is the sensible next step if your symptoms are not settling.
What is Hip Flexor Strain?
The hip flexors are a group of muscles, mainly the iliopsoas and the rectus femoris, which runs from the front of the pelvis down the thigh to the knee. They work hard when you sprint, kick, climb stairs and lift your leg into a car. A strain happens when the muscle is stretched or contracted beyond what it can handle, causing small tears in the fibres. Strains are often graded as mild, moderate or more severe. This is different from general hip joint pain, which tends to be deeper and linked to stiffness, and from a groin strain, which affects the adductor muscles on the inside of the thigh.
Typical Symptoms
- Pain at the front of the hip or top of the thigh, often starting suddenly
- Pain when lifting the knee towards the chest, such as climbing stairs
- Discomfort when kicking, sprinting or getting in and out of a car
- Tenderness at the front of the hip and sometimes mild bruising
- A feeling of tightness or weakness when you try to run
Common Causes & Triggers
- Sudden sprinting, kicking or a quick change of direction
- Returning to sport after a break and going straight back to full intensity
- A rapid increase in running, football or martial arts training
- Previous hip flexor strains that have not been fully rehabilitated
- Long periods sitting followed by sudden explosive activity
How We Treat Hip Flexor Strain at Bluebell
- 1
A clear account of how the injury happened and what you can and cannot do now.
- 2
Examination of hip strength, movement and the specific muscles involved, to separate a hip flexor strain from groin, hip joint or lower back problems.
- 3
Early advice on staying active within comfortable limits and avoiding repeated sprinting or kicking while the muscle settles.
- 4
Progressive strengthening of the hip flexors, glutes and trunk, moving from gentle exercises to running drills, kicking and change of direction work.
- 5
A return to sport plan based on strength and movement rather than the calendar, with referral back to your GP if the picture suggests something other than a muscle strain.
Honest Recovery Timeline
Mild hip flexor strains often settle over a few weeks with the right loading. More significant strains take longer, and going back to sprinting or kicking too early is a common reason for the injury coming back. Your physiotherapist will explain where you are in recovery and what needs to be in place before full training.
Hip flexor strain, hip pain and groin strain
If your pain feels deep in the joint and comes with stiffness rather than following a sudden sprint, our hip pain guide may fit better. If the pain sits on the inside of the thigh and started with a stretch or a kick across the body, read our groin strain guide. Each needs a slightly different rehabilitation plan.
Booking a hip flexor assessment
Our sports injury clinic explains how sports injuries are assessed and how return to sport plans are built around your goals. Appointments are at Warren Road, Blue Bell Hill, Chatham ME5 9RD, with free parking, Monday to Saturday 8am to 8pm. You can self-refer online or call 01634 757123.
When Hip Flexor Strain Needs Urgent Medical Attention (Not Physio)
- •Hip or groin pain after a fall, especially if you cannot bear weight, go to A and E to rule out a fracture.
- •A hot, swollen, very painful hip with a high temperature, seek same day medical care.
- •Front of hip pain in a child or teenager with a limp, see your GP promptly.
- •Hip pain with unexplained weight loss, night sweats or pain that is worse at night without movement, see your GP.
Hip Flexor Strain — Common Questions
How long does a hip flexor strain take to heal?
Mild strains often settle in a few weeks, while more significant strains take longer. The timeline depends on how much of the muscle is involved and how gradually you return to sport.
Should I stretch a strained hip flexor?
Hard stretching in the early days can irritate the muscle. Gentle movement and strengthening are usually more helpful at first, and your physiotherapist will tell you when stretching fits in.
Is it a hip flexor strain or a groin strain?
Hip flexor pain sits at the front of the hip and hurts when lifting the knee. Groin strain pain sits on the inside of the thigh and hurts when squeezing the legs together. An assessment helps tell them apart.
What does hip flexor physio involve?
An assessment of the injury, advice on what to do and avoid, progressive strengthening and a staged return to running, kicking and sport.
What affects the cost of treatment?
The number of appointments you need is the main factor, and that depends on the severity of the strain and your sport. Ask the clinic for current fees, and check with your insurer if you have cover.