Pelvic floor: complete guide to pelvic health

The pelvic floor is one of the most overlooked muscle groups in the body — yet one of the most important for quality of life. It controls urinary and faecal continence, supports the pelvic organs, participates in sexual function, and works in constant coordination with breathing, abdominal pressure and lumbar stability.

When it works well, you simply don’t notice it. When it doesn’t, symptoms can range from inconvenient to severely limiting.

This guide explains — in clear, evidence-based terms — everything you need to know: basic anatomy, dysfunction symptoms, how to train correctly, and when to seek professional help.

What is the pelvic floor and where is it?

The pelvic floor is a group of muscles, fascia and ligaments forming the base of the pelvic cavity. Think of it as a muscular hammock stretching from the pubic bone to the coccyx (front to back) and between the two sitting bones (side to side).

This hammock has three openings in women — the urethra, vagina and rectum — and two in men — the urethra and rectum. Each opening has sphincters that are controlled voluntarily (and partly involuntarily) to regulate when the bladder or bowel empties.

The main muscles form three layers:

• Deep layer (pelvic diaphragm): levator ani and coccygeus. Works continuously to support the weight of the organs.
• Middle layer (urogenital diaphragm): membranes and muscles surrounding the urethra and vagina.
• Superficial layer: muscles around the openings, important for sexual function and ejaculation.

The pelvic floor works in constant coordination with the breathing diaphragm, deep abdominal muscles (transversus abdominis) and the paraspinal muscles. When you inhale, the diaphragm descends and the pelvic floor drops slightly. When you exhale or cough, the pelvic floor rises to counter the increase in abdominal pressure.

Why it matters so much

The pelvic floor performs functions that affect everyday life profoundly:

Continence: controls the closure of the urethra and anus, preventing leaks of urine, gas or faeces during pressure situations (coughing, running, laughing) or sudden urgency.

Organ support: supports the bladder, uterus (in women) and rectum. When it loses strength, organs can descend towards the vagina or perineum, leading to pelvic organ prolapse.

Sexual function: muscle tone, the ability to contract and — crucially — the ability to relax influence penetration, orgasm and sexual satisfaction.

Lumbar and pelvic stability: working alongside the transversus abdominis, it forms part of the trunk stabilisation system. Pelvic floor dysfunction can contribute to chronic low back pain.

Symptoms that suggest a problem

Pelvic floor dysfunction does not always present with obvious symptoms. Many people normalise problems that actually indicate the system is not working as it should.

Urinary incontinence

The most frequent symptom, and the least reported — due to embarrassment or normalisation.

• Stress incontinence: leakage when coughing, sneezing, jumping or running. Caused by a pelvic floor with insufficient resistance against rises in abdominal pressure.
• Urgency incontinence: a sudden, irresistible need to use the toilet, sometimes with leakage before reaching it. Associated with detrusor overactivity.
• Mixed incontinence: a combination of the above two.

Pelvic organ prolapse

A feeling of heaviness or pressure in the pelvis, as if something is “coming down.” Sometimes a bulge or protrusion is visible at the vaginal opening. Prolapse is gradual and worsens with exertion, prolonged standing and constipation.

Read our guide on pelvic organ prolapse →

Pelvic pain and dyspareunia

Chronic pelvic pain, dyspareunia (pain during sex) and vaginismus are often associated with pelvic floor hypertonia — muscles that are excessively tense and unable to relax. In these cases, the solution is not to contract more, but to learn to let go.

Faecal incontinence or defaecatory urgency

Less discussed but equally limiting: leakage of gas or stool, or an urgent need to defaecate that cannot be controlled. Frequently linked to obstetric injuries, anal surgery or neuropathy.

Sexual dysfunction

Difficulty reaching orgasm, reduced sensation, or pain. A hypertonic pelvic floor can make penetration painful or impossible; a hypotonic one can reduce sensation and satisfaction.

Pelvic floor muscle training: evidence and principles

Pelvic floor muscle training (PFMT) is the recommended first-line conservative intervention in major clinical guidelines for stress and mixed urinary incontinence and pelvic organ prolapse.

The NICE NG123 guideline recommends supervised PFMT as the first therapeutic option for stress incontinence. The Cochrane review CD005654 concludes that women who complete supervised PFMT have significantly fewer leaks than those who do not. The International Continence Society (ICS) includes PFMT in all its conservative treatment guidelines.

Explore the evidence sources in detail →

PFMT is not simply “doing kegels.” A complete programme includes:

1. Body awareness: learning where the muscles are and how to feel both contraction and relaxation.
2. Correct contraction technique: selectively contracting the pelvic floor without compensating with glutes, abdominals or adductors.
3. Active relaxation: many people neglect the relaxation phase, which is equally important as contraction.
4. Functional progression: moving from contractions lying down to contractions in more demanding positions (sitting, standing) and finally to functional movements (jumping, running).
5. Long-term adherence: improvement is maintained as long as training continues. Stopping leads to gradual regression.

How to train the pelvic floor correctly

Find the muscles

Before training, you need to know where what you are trying to move is located. The most common approach is to imagine you are trying to stop the flow of urine or hold in gas: that internal contraction is the pelvic floor.

Important: do not routinely stop urine flow as an exercise. Interrupting urination habitually can interfere with the bladder’s voiding reflex. Use it as a one-off check, not as training.

Starter protocol

For someone starting from zero, a reasonable starting point is:

• Sustained contractions: 8–10 contractions held for 6–8 seconds, with full relaxation for twice that time between each. 3 sets per day.
• Quick flicks: 10–15 rapid contractions (1 second on, 1 second off) to train the reflexive response to coughs or sneezes.

As strength and endurance improve, increase contraction duration, number of repetitions and position difficulty.

Read the complete kegel exercise guide →

Common mistakes

• Holding your breath during contraction: the pelvic floor works best when coordinated with breathing.
• Contracting everything except the pelvic floor: many people squeeze the glutes, inner thighs or abdomen instead.
• Skipping the relaxation phase: chronic partial contraction can contribute to hypertonia.
• Expecting immediate results: histological changes (muscle and connective tissue remodelling) take weeks.

The pelvic floor across the lifespan

Pregnancy and postpartum

Pregnancy places the pelvic floor under enormous load: the increasing weight of the uterus, hormonal changes that relax ligaments, and vaginal birth (particularly prolonged pushing, a large baby or the use of instruments) can leave the pelvic floor weakened or injured.

PFMT during pregnancy is safe and recommended. It can reduce the risk of incontinence during and after gestation.

Read the postpartum recovery guide →

Menopause

The decline in oestrogen during menopause reduces the strength and elasticity of pelvic floor tissues. The genitourinary syndrome of menopause includes dryness, atrophy and greater susceptibility to incontinence and prolapse. PFMT in menopause has evidence for improving continence and sexual quality of life.

Read the menopause and pelvic floor guide →

Prostate surgery (men)

Radical prostatectomy is one of the most common causes of urinary incontinence in men. Pre- and post-operative PFMT has strong evidence for reducing the duration of incontinence and accelerating recovery.

When to seek professional help

Independent training is a good starting point, but there are situations where an assessment by a pelvic floor specialist physiotherapist is necessary:

• Pelvic, perineal or low back pain that does not improve or worsens with exercise
• Prolapse symptoms: pressure, heaviness, or a visible protrusion at the vaginal opening
• Severe or persistent incontinence that does not improve after 8–12 weeks of training
• Sexual dysfunction accompanied by pain
• Postpartum with third or fourth degree tear, forceps or vacuum delivery
• Hypertonia: if you find it difficult to relax, experience pain during sex, or have persistent perineal tension