Introduction
Groin pain is one of the most complex injury presentations in sport, a region where multiple muscles, tendons, joints, and nerves converge, and where more than one structure is frequently involved simultaneously. It is particularly common in football, rugby, hockey, and other change-of-direction sports. The frustration for athletes and clinicians alike is that groin pain often becomes chronic without clear diagnosis, and the traditional management of rest and passive treatment has poor outcomes. Contemporary sport medicine has moved decisively towards progressive loading and structured rehabilitation as the cornerstone of treatment.
Whether you are dealing with a recent flare-up or something that has nagged you for years, understanding why your body hurts is the most important first step. This guide draws on the latest pain science, physiotherapy research, and practical coaching wisdom meticulously validated and referenced to give you peace of mind.
Understanding the Anatomy
The groin is the region at the junction of the thigh and torso. The primary structures involved in groin pain are the adductor muscle group (adductor longus, brevis, magnus, gracilis, and pectineus), which originate from the pubis and converge to the medial femur. The iliopsoas (hip flexor) runs from the lumbar spine and ileum to the lesser trochanter of the femur, crossing the anterior hip. The pubic symphysis is a fibrocartilaginous joint in the midline where both sides of the pelvis meet, it is placed under significant shearing stress in kicking and change-of-direction sports. The inguinal canal runs nearby, and hernias, both true and sportsman's hernia (inguinal disruption), must be considered in differential diagnosis.
Key structures involved: Adductor longus, Adductor brevis, Adductor magnus, Gracilis, Pectineus, Iliopsoas (hip flexor, anterior groin pain).
Why Does It Hurt? Root Causes
Modern pain science reminds us that pain is your nervous system's threat response, not simply a damage signal. That said, there are real, identifiable drivers.
1. Adductor Muscle Strain
The most common acute groin injury, a sudden stretch or overload of the adductor muscles during kicking, sprinting, or change of direction. The adductor longus at its proximal attachment is the most commonly involved.
2. Adductor Tendinopathy
Chronic, degenerative changes at the proximal adductor tendon attachment to the pubis. Presents as insidious-onset groin pain, worse after activity, producing morning stiffness and pain with resisted adduction.
3. Athletic Pubalgia (Sportsman's Hernia)
Weakness of the posterior inguinal wall without a true hernia sac, causing chronic groin pain in athletes performing explosive movements. Requires specialist assessment.
4. Hip Flexor (Iliopsoas) Strain
Anterior groin pain aggravated by resisted hip flexion and passive hip extension stretch. Common in sprinters, cyclists, and dancers.
5. Hip Joint Pathology
Deep groin pain localised to the hip joint crease suggests possible labral tear, hip impingement, or early osteoarthritis, all of which cause groin pain that is often attributed to the adductors.
How Massage Helps
Massage for groin pain focuses on the adductor muscle group and hip flexors, two areas that are often undertreated. Adductor massage is performed with the client in side-lying or supine with the hip externally rotated, allowing access to the medial thigh. Effleurage and petrissage of the adductor group reduces muscular tension and improves local circulation. The iliopsoas can be accessed anteriorly with the client in supine, the therapist working lateral to the umbilicus and pressing posteriorly. Trigger points in both the adductors and iliopsoas commonly refer to the groin. Pubic symphysis palpation should be respectful and always within appropriate professional boundaries.
Beyond specific mechanical effects, massage floods the nervous system with safe, rich sensory input, downregulating the threat response and creating conditions in which healing becomes easier.
Stretches to Try
Consistency matters far more than intensity. Gentle, daily stretching with calm breathing reduces perceived tightness and signals safety to the nervous system.
Adductor Long Stretch
Stand with legs wide, toes pointing outward. Shift weight to one side, sinking into that hip. Hold 30 to 45 seconds per side. Benefit: Lengthens the adductor group through the range of motion commonly restricted in athletes with adductor tendinopathy.
Hip Flexor Lunge Stretch
Kneeling lunge. Tuck pelvis slightly and push hips forward. Hold 45 seconds per side. Benefit: Stretches the iliopsoas, critical for anterior groin pain and hip flexor strain.
Butterfly Stretch
Sit with the soles of your feet together. Gently press the knees towards the floor. Hold 30 seconds. Benefit: Gentle medial thigh and adductor stretch suitable in the early phase of adductor rehabilitation.
Strengthening Exercises
Loading tissues progressively tells your nervous system they are capable and resilient.
Copenhagen Adductor Exercise
Side plank position. Top foot on a bench or step, bottom foot hangs free. Lift the bottom leg to meet the top. 3 sets of 8 to 12. Benefit: The most evidence-supported exercise for adductor strengthening and groin injury prevention, strong research from football rehabilitation.
Resisted Hip Adduction
Lie on your back with a ball or folded pillow between your knees. Squeeze the knees together against the resistance. Hold 5 seconds. 3 sets of 15. Benefit: Introductory adductor loading suitable in early rehabilitation before progressing to the Copenhagen exercise.
Hip Abductor and Adductor Balance
Include both hip abduction (clamshells, side-lying raises) and adduction work. The ratio should be approximately balanced. Benefit: Adductor strength in isolation is insufficient, balance with abductor strength is essential for groin injury prevention.
Practical Self-Care
- Acute adductor strain: POLICE principles for 48 to 72 hours, then progressive loading.
- Do not stretch aggressively in the acute phase, gentle isometric work first, then eccentric loading.
- Return to sport should be based on strength benchmarks (Copenhagen exercise capacity) not just absence of pain.
- Monitor for hernia symptoms, bulge in the groin, pain with coughing or straining, which require surgical assessment.
- Preseason adductor strengthening with Copenhagen exercises has been shown in research to reduce groin injury rates by over 40%.
When to See a Professional
- Bulge in the groin with pain, possible inguinal hernia, requires surgical review.
- Severe acute pain with deformity or significant bruising, possible Grade 3 tear.
- Hip joint involvement (deep groin pain with hip internal rotation), imaging indicated.
- Testicular or scrotal pain referred to the groin, urological assessment required.
A qualified physiotherapist, sports therapist, or massage therapist can identify the specific drivers of your pain.
References and Further Reading
- Holmich P et al. Effectiveness of active physical training as treatment for long-standing adductor-related groin pain. Lancet. 1999.
- Harmon KG. Evaluation of groin pain in athletes. Curr Sports Med Rep. 2007.
- Mosler AB et al. Which factors differentiate athletes with hip and groin pain from those without? BJSM. 2015.
- Ingraham P. Groin pain guide. painscience.com.
- Morrison T. Hip and groin mechanics. tommorrison.uk.
Content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before beginning any new exercise or treatment programme.