Inner Thigh Pain and why pelvic floor muscles can also be the problem.

(Has two sessions to this information)

The Key Muscular Culprits

The inner thigh is dominated by the adductor muscle group, whose primary job is to pull the legs together (adduction) and stabilize the pelvis. When bilateral pain occurs, several specific muscles are often working overtime:

1. Adductor Longus & Adductor Brevis

• The Role: These are the most commonly strained muscles in the inner thigh. They run from the pubic bone down to the thigh bone (femur).

• Why They Hurt: They are highly active during walking, running, and directional changes. In women, an increased "Q-angle" (the wider angle from the hip to the knee due to a wider pelvis) can place extra mechanical stress on these tendons, leading to bilateral micro-tearing or tendinopathy.

2. Adductor Magnus

• The Role: The largest and deepest muscle of the group, acting as both an adductor and a powerful hip extender.

• Why It Hurts: It acts like a dynamic bridge between the hamstrings and the inner thigh. When the glutes or hamstrings are underactive, the adductor magnus frequently compensates, leading to a deep, aching pain on both sides.

3. Gracilis

• The Role: A long, superficial muscle that crosses both the hip and the knee joints.

• Why It Hurts: Because it crosses two joints, it is highly sensitive to knee instability and pelvic tilting. If a client frequently rotates their knees inward while walking or squatting, the gracilis muscles on both sides can become tight and hypertonic.

4. Pectineus

• The Role: Sitting high up in the groin crease, this muscle assists in both hip flexion and adduction.

• Why It Hurts: Prolonged sitting at a desk shortens the pectineus bilaterally. When a client stands up or stretches out their stride, these shortened muscles pull tightly on the pubic bone, causing a sharp, pinching sensation.

Why Bilateral Inner Thigh Pain Hits Women Differently

Muscles do not work in isolation. In women's health, bilateral muscular strain in the inner thighs is frequently tied to broader systemic or biomechanical factors:

• The Pelvic Floor Connection: The adductors share a facial connection with the pelvic floor muscles. If a woman experiences pelvic floor hypertonicity (overactive muscles) or weakness, the inner thighs will often tighten up symmetrically to help stabilize the pelvis.

• Pregnancy and Postpartum: During pregnancy, the hormone relaxin loosens pelvic ligaments. The adductors must work twice as hard to keep the pelvis stable, often resulting in symmetrical strain or a condition known as Symphysis Pubis Dysfunction (SPD).

• The "Glute Amnesia" Cycle: Symmetrical weakness in the gluteus medius forces the inner thighs to act as primary stabilizers during single-leg movements (like walking). This constant overwork leads to chronic, bilateral fatigue in the adductors.

How Massage Therapy Can Help

When addressing this presentation in the clinic, a targeted approach can help restore balance:

• Neuromuscular Therapy (NMT): Releasing hypertonic trigger points in the belly of the adductor longus and magnus to alleviate referred groin pain.

• Myofascial Release (MFR): Lengthening the broad fascial sheets of the inner thigh to relieve pulling sensations near the public attachments.

• Assisted Stretching: Using Proprioceptive Neuromuscular Facilitation (PNF) stretching to safely restore length to the inner thigh complex without over-stretching the tendons.

A Note on Client Safety: While muscular tightness is a common cause, bilateral inner thigh pain can occasionally stem from non-muscular sources, such as nerve entrapment (obturator nerve), hip joint issues, or pelvic congestion syndrome.

If massage therapy does not provide relief within a few sessions, collaborating with a physical therapist or pelvic health specialist ensures comprehensive care.

How the pelvic floor can cause inner thigh pain

The pelvic floor is a group of muscles that support the bladder, bowel, and reproductive organs. Some of these muscles connect with or work closely alongside the muscles of the inner thigh (the adductors), hips, and lower pelvis. When the pelvic floor becomes overly tight, strained, or develops trigger points, pain may be felt in areas beyond the pelvis, including:

• The inner thigh or groin

• The buttocks

• The lower abdomen

• The hips

• The tailbone

This is known as referred pain, where the brain perceives pain in a location different from where the problem originates.

Signs the pelvic floor may be involved

Pelvic floor muscles may be contributing if the inner thigh pain is associated with one or more of the following:

• Pain that feels deep, aching, or burning rather than sharp.

• Pain that worsens with prolonged sitting.

• Pain during or after exercise, especially activities involving the hips or core.

• Pain with bowel movements or urination.

• Urinary urgency, frequency, or difficulty emptying the bladder.

• Pain during sexual activity.

• A feeling of pelvic heaviness, tightness, or muscle spasm.

Other common causes of inner thigh pain

Pelvic floor dysfunction is only one possibility. Other causes include:

• Adductor (groin) muscle strain.

• Hip joint problems, such as Hip osteoarthritis or a labral tear.

• Irritation of the Obturator nerve.

• Inguinal or femoral hernia.

• Tendon injuries.

• Stress fractures of the pelvis or femur (particularly in runners).

• Conditions affecting the lower back that irritate nerves supplying the thigh.

How it's diagnosed

A healthcare professional may:

• Ask about when the pain occurs and what makes it better or worse.

• Examine your hip, groin, lower back, and pelvic muscles.

• Assess pelvic floor muscle tone and tenderness (often by a specially trained clinician, such as a pelvic floor physiotherapist).

• Order imaging if another condition is suspected.

Treatment of the pelvic floor is the cause

Treatment depends on the underlying problem, but may include:

• Assessment and treatment by a pelvic floor physiotherapist.

• Gentle relaxation and breathing exercises if the muscles are overly tense.

• Stretching and strengthening exercises for the hips, core, and pelvic region as appropriate.

• Activity modification while symptoms settle.

• Addressing contributing factors such as constipation, chronic coughing, or heavy lifting.

When to seek prompt medical care

You should seek urgent medical assessment if the pain is:

• Sudden and severe after an injury.

• Associated with inability to bear weight.

• Accompanied by fever, redness, or significant swelling.

• Associated with numbness in the groin ("saddle" area), loss of bladder or bowel control, or significant leg weakness.

• Accompanied by a new painful groin lump that cannot be pushed back in.

If your pain has been present for more than a few weeks, is recurring, or is associated with urinary, bowel, or sexual symptoms, it's worth seeing your primary care clinician or a pelvic floor physiotherapist for a more targeted assessment.

These statements are supported by respected medical references, including:

• Travell, Simons & Simons' Myofascial Pain and Dysfunction: The Trigger Point Manual – the standard reference on referred pain patterns from muscles.

• American Physical Therapy Association – educational resources on pelvic floor dysfunction and pelvic pain.

• International Continence Society – guidance on pelvic floor disorders and chronic pelvic pain.

• American College of Obstetricians and Gynecologists – clinical guidance on chronic pelvic pain, including musculoskeletal causes.

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