Groin strain
Also called: adductor strain, pulled groin, groin pull, adductor muscle injury. Clinical name: Adductor muscle strain (groin strain).
Mild groin strains settle in 1–2 weeks, moderate tears in 3–6 weeks, and severe tears in 8 weeks or more. The biggest risk is returning to sprinting and kicking too early and pulling it again.
What it actually is
A groin strain is a tear in the adductor muscles, the group that runs down the inner thigh and pulls your legs together. It is the signature injury of any sport built on sprinting, kicking and sudden changes of direction: football, GAA, hockey, sprinting. The moment is usually unmistakable, a sharp grab high on the inner thigh as you stretch for a ball, lash a kick, or twist off the leg.
Severity runs from a mild pull to a complete tear, and the first day tells you a lot. A grade 1 is tight and sore but walkable and settles in a week or two. A grade 2 is sharper, bruises on the inner thigh, leaves you weak when you squeeze your knees together, and grumbles for several weeks. A grade 3 is a different injury, with severe pain, big bruising and trouble walking, and occasionally, in athletes, surgery. Most fall in the middle and recover with patient loading rather than rest alone.
What gives groin strains their bad reputation is not the first injury but the repeat. Re-injury is common, and it nearly always traces to the same mistake: sprinting or kicking restarted before the adductors were strong enough. The fix is a gradual return, walk to jog to stride to sprint, with adductor strengthening that carries on after you are back playing. Tracked honestly, day by day, a groin strain is usually a few weeks; ignored and rushed, it becomes a season-long companion.
How bad is it?
Injuries like this are usually described in grades. The grade is what shapes your timeline and what you can safely do while it settles.
A few fibres of the inner-thigh muscles overstretched. A pull or tightness high on the inner thigh, sore to squeeze the legs together, but you can usually still walk and jog. Sprinting and kicking are what it complains about.
A partial tear. Sharper pain in the groin, often with bruising or swelling on the inner thigh a day or two later, and clear weakness when squeezing the knees together. Walking may be uncomfortable at first and kicking is off the table.
A complete or near-complete tear. A sudden severe pain, sometimes a pop, significant bruising, and real difficulty walking. Needs a clinician early and occasionally, in athletes, surgery.
How long will it take?
Recovery moves in phases. This is the typical shape of it — yours may run faster or slower, and the numbers below are general ranges, not a forecast for your specific injury.
When to get it looked at
Most cases settle with time and sensible loading. Get it assessed by a professional if any of these apply — they can point to something that needs hands-on care:
- Sudden severe pain with a pop and difficulty walking (possible complete tear)
- Pain that also involves the lower abdomen, or a bulge in the groin that appears on coughing or straining (possible hernia, needs assessment)
- Groin pain with fever, or in a young athlete pain over the pubic bone that is not settling (needs a clinician to rule out bone or joint problems)
- Numbness, tingling or pain spreading down the leg
- Pain that is not clearly improving after two to three weeks of sensible rest and rehab, or that keeps recurring every season
This is a list of warning signs, not a diagnosis. If you are worried, or the pain is severe, see a GP, physiotherapist or urgent care.
What to track while you recover
Groin strains are notorious for coming back, almost always because sprinting and kicking restarted before the adductors were strong enough. A daily note of pain and what the leg actually did keeps that from happening a second time.
- Pain score, 0–10, at rest, walking, and on the hardest thing the leg did today
- Pain or weakness squeezing the knees together (a simple daily strength check)
- The fastest thing the leg did: walk, jog, stride, sprint, kick, and how it felt
- Any bruising or swelling on the inner thigh, and how it is changing
- Strength sessions done, especially adductor work like the Copenhagen exercise
This is exactly what InjuryLog does.
Log each of these in seconds, watch the trend build day by day, and keep every scan and receipt tied to this one injury. Free on iOS, Android soon.
Wondering how long yours will take? Try the free recovery time estimator for a typical, phased timeline by injury and severity.
What to tell your physio
A clinician assessing a groin strain wants the story of the moment it went and needs to separate a simple muscle strain from the other things that cause groin pain (hernia, hip joint, pubic bone). Bring the detail.
- Exactly how it happened: sprinting, kicking, a stretch or a change of direction, and whether you felt a pop
- Whether you could keep playing or had to stop, and when bruising appeared
- Where the pain sits: high inner thigh and squeeze-sore points to the adductors; lower belly or a cough-related bulge points elsewhere
- Current pain, squeeze strength, and the fastest running or kicking you have managed
- Previous groin injuries (the biggest re-injury risk factor) and your sport and return target
Walk in with the whole picture.
InjuryLog turns your daily logs into a clean Physio Visit Pack, a one-page summary your physio can actually read, so the first appointment starts with facts, not guesswork.
The questions people actually ask
How long does a groin strain take to heal?
It depends on grade. A mild grade 1 strain usually settles in one to two weeks, a moderate grade 2 partial tear in about three to six weeks, and a severe grade 3 tear in eight weeks or more, occasionally needing surgery in athletes. The honest range for most sporty adults with a typical grade 2 is around a month. Recovery is slower and more nervous if you have strained the same groin before, which is common, because a previous groin injury is the single biggest risk factor for the next one.
What does a grade 2 groin strain feel like?
Usually a sharp pain high on the inner thigh or in the groin at the moment it happens, often mid-sprint, mid-kick or in a lunge, strong enough to stop you. Over the next day or two you may see bruising or swelling on the inner thigh, and squeezing your knees together will be painful and weak. Walking can be uncomfortable at first, and any attempt to sprint or kick reproduces the pain sharply. It typically has one clearly tender spot rather than a vague ache.
Can I play sport or run with a groin strain?
Not at first, and not at speed. The early aim is walking comfortably, then easy jogging once that is painless. Sprinting, kicking and changes of direction are what stress the adductors most, so they come back last, in stages. Playing through a fresh groin strain, or jumping straight back to full-speed sprinting and kicking, is the classic way a two-week niggle becomes a two-month problem and then a recurring one. Build the speed and the kick load back gradually.
Should I stretch a pulled groin?
Not hard, and not early. A fresh strain is a torn muscle, and forcing it into a stretch stresses exactly the fibres trying to heal. Early on, gentle pain-free movement is enough. What actually rebuilds a groin and protects it from the next strain is strengthening, not stretching: adductor loading such as isometric squeezes early and the Copenhagen exercise later has good evidence for both recovery and prevention. Ease off any stretch or exercise that produces sharp groin pain.
Why do groin strains keep coming back?
Because the biggest risk factor for a groin strain is a previous one, and most re-injuries come from returning to sprinting and kicking before the adductors have regained their strength. Scar tissue, lingering weakness, and rushing the last phase all stack the odds. The protective factors are unglamorous and effective: finishing the adductor strengthening programme, building sprint and kick load gradually, and keeping that strength work in your weekly routine once you are back playing. Footballers in particular benefit from ongoing adductor training.
How do I know it is a groin strain and not a hernia?
A muscle strain has a clear moment it happened (a sprint, kick or stretch), sits high on the inner thigh, and is sore to squeeze the legs together. A sports hernia or inguinal hernia tends to build more gradually, sits lower toward the lower belly and groin crease, and a hernia may produce a bulge that appears when you cough or strain. Groin pain that has no clear injury moment, that involves the lower abdomen, or that comes with a cough-related bulge is worth a clinician's assessment rather than treating it as a simple strain.
Sources
- Groin strain — NHS
- Muscle Strains in the Thigh — AAOS OrthoInfo