📋 Key Information Summary
- Sexual dysfunction affects approximately 34% of Australian women and 25% of Australian men; prevalence increases with age and comorbidity but is not an inevitable consequence of ageing.
- Routine enquiry about sexual health should be incorporated into general practice consultations — most patients will not raise concerns spontaneously; use the PLISSIT model (Permission, Limited Information, Specific Suggestions, Intensive Therapy) to guide the conversation.
- A structured sexual history using the "5 Ps" framework (Partners, Practices, Past STIs, Protection, Pregnancy) provides a systematic approach applicable across all presentations.
- Female sexual dysfunction encompasses hypoactive sexual desire disorder (HSDD), female orgasmic disorder, genito-pelvic pain/penetration disorder (GPPPD/dyspareunia), and arousal disorder — biopsychosocial assessment is essential.
- Dyspareunia requires distinction between superficial (introital) and deep (vaginal/vault) pain; causes include vulvodynia, vaginal atrophy, endometriosis, pelvic adhesions, and pelvic floor hypertonicity.
- Vaginal oestrogen (e.g., Vagifem® / Ovestin®) is first-line for genitourinary syndrome of menopause causing dyspareunia; vaginal DHEA (Prasterone / Intrarosa®) is an alternative — both available on PBS for postmenopausal women.
- Erectile dysfunction (ED) in a man aged <60 years or with acute onset warrants cardiovascular risk assessment — ED may be the earliest clinical marker of endothelial dysfunction and coronary artery disease.
- PDE5 inhibitors (sildenafil, tadalafil, vardenafil) remain first-line for ED; tadalafil 5 mg daily is preferred when sexual activity is frequent (>2/week) or when lower urinary tract symptoms coexist — all are PBS-listed as Authority Required.
- Low libido in men and women often has a multifactorial aetiology: medication side effects (SSRIs, anti-androgens, opioids), relationship distress, depression, hormonal deficiency, and chronic illness must all be addressed.
- Testosterone therapy for postmenopausal HSDD may be considered when other causes are excluded; testosterone undecanoate (AndroFeme®) is TGA-approved for women in Australia, though not PBS-listed for this indication.
- Always consider the partner's perspective and offer couple-based referral where appropriate; referral pathways include sexual health physicians, pelvic floor physiotherapists, psychologists (especially those trained in CBT for sexual concerns), and specialist gynaecologists.
- Aboriginal and Torres Strait Islander Australians experience higher rates of STIs, barriers to culturally safe sexual health discussions, and unique psychosocial determinants that impact sexual wellbeing — a trauma-informed, shame-free approach is mandatory.
Introduction & Australian Epidemiology
Sexual health is a fundamental component of overall wellbeing, as defined by the World Health Organization: "a state of physical, emotional, mental and social well-being in relation to sexuality; it is not merely the absence of disease, dysfunction or infirmity." Despite this, sexual dysfunction remains significantly under-recognised and under-treated in Australian general practice, with studies suggesting that fewer than 20% of affected individuals ever discuss their concerns with a GP.
The Australian Longitudinal Study of Health and Relationships (ASHR) and the more recent Second Australian Study of Health and Relationships (ASHR2) provide the most robust population-level data. Key findings include:
- Women: Approximately 34% report at least one sexual difficulty lasting ≥3 months in the preceding year — most commonly low desire (reported by ~55% of women with any difficulty), difficulty with arousal (~26%), and difficulty achieving orgasm (~21%).
- Men: Approximately 25% report at least one sexual difficulty — most commonly erectile difficulties (~16%), premature ejaculation (~15%), and low desire (~10%).
- Age trends: Prevalence of erectile dysfunction rises from ~8% in men aged 20–29 to >60% in men over 70; postmenopausal women report higher rates of dyspareunia and desire concerns.
- Psychosocial impact: Sexual dysfunction is strongly associated with depression, anxiety, relationship dissatisfaction, and reduced quality of life in both sexes.
In Australia, sexual health consultations in general practice are funded under Medicare, with standard Level B–D consultation items (items 3, 23, 36) applicable. No specific MBS item exists for sexual dysfunction assessment alone, but extended consultations (Level C, item 36; Level D, item 44) are recommended to allow adequate time for sensitive history-taking and biopsychosocial formulation.
Sexual Difficulties & Dysfunction Presentations
Sexual dysfunction encompasses a broad spectrum of conditions classified by the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, 5th edition) and the ICD-11 (International Classification of Diseases, 11th revision). The key principle is that a sexual concern must cause marked personal distress or interpersonal difficulty to warrant a formal diagnosis — the absence of a problem-free sexual encounter is not itself pathological.
Classification Overview
| Domain | Female | Male |
|---|---|---|
| Desire | Female Sexual Interest/Arousal Disorder (FSIAD) — combines desire and arousal in DSM-5 | Male Hypoactive Sexual Desire Disorder (MHSDD) |
| Arousal | Included within FSIAD; historically Female Arousal Disorder | Erectile Disorder / Erectile Dysfunction (ED) |
| Orgasm | Female Orgasmic Disorder | Delayed Ejaculation; Premature Ejaculation (PE) |
| Pain | Genito-Pelvic Pain/Penetration Disorder (GPPPD) — merges vaginismus and dyspareunia | Genito-Pelvic Pain/Penetration Disorder (less common) |
Common Presenting Complaints in General Practice
- "I'm just not interested anymore" — reduced desire/libido (m or f)
- "I can't get or keep an erection" — erectile difficulties
- "Sex is painful" — dyspareunia (superficial or deep)
- "I can't reach orgasm" — anorgasmia or delayed orgasm
- "It happens too quickly" — premature ejaculation
- "I avoid sex altogether" — sexual aversion (often related to past trauma)
- Vague presentation: fatigue, relationship conflict, low mood — may mask underlying sexual concerns
The Biopsychosocial Model
Every sexual dysfunction should be conceptualised through a biopsychosocial lens:
Taking a Sexual History
Effective sexual history-taking is the cornerstone of assessment. The Australian Government's STI & BBV Testing Guidelines recommend that GPs ask about sexual health proactively rather than waiting for patients to raise concerns. Several validated frameworks exist to guide this conversation.
Creating a Safe Environment
- Ensure confidentiality is explicitly stated — particularly for adolescents and patients in small communities.
- Use gender-neutral and inclusive language (e.g., "partner" rather than "husband/wife").
- Normalise the topic: "I ask all my patients about sexual health as part of a routine check-up."
- Allow adequate time — a minimum 20-minute appointment (MBS item 23 or longer) is recommended.
- Consider offering a same-sex practitioner if the patient expresses a preference, but do not assume this is required.
The PLISSIT Model
The PLISSIT model (Annon, 1976) provides a graduated framework for intervention that is well-suited to general practice:
The "5 Ps" Framework
Adapted from the CDC and endorsed by the Australasian Society for HIV, Viral Hepatitis and Sexual Health Medicine (ASHM), the 5 Ps provide a systematic sexual history structure:
| P | Area | Example Questions |
|---|---|---|
| Partners | Number, gender, new/recent | "Do you have sex with men, women, or both?" "How many sexual partners have you had in the past 12 months?" |
| Practices | Types of sexual contact | "What types of sexual contact do you have — vaginal, oral, anal?" |
| Past STIs | Previous diagnoses and treatment | "Have you ever been diagnosed with an STI? When was your last STI screen?" |
| Protection | Condom use, PrEP, contraception | "How often do you use condoms? Are you on any form of contraception?" |
| Pregnancy | Current plans, history | "Is pregnancy a possibility or a goal for you or your partner?" |
Validated Screening Tools
- Arizona Sexual Experiences Scale (ASEX): 5-item self-report scale assessing drive, arousal, erection/lubrication, orgasm satisfaction, and orgasm latency — useful as a quick screening tool.
- Female Sexual Function Index (FSFI): 19-item validated questionnaire covering desire, arousal, lubrication, orgasm, satisfaction, and pain — the gold standard for female sexual dysfunction research.
- International Index of Erectile Function (IIEF): 15-item questionnaire — the most widely validated tool for ED assessment; domain scores guide severity classification.
- Sexual Health Inventory for Men (SHIM): 5-item abbreviated version of the IIEF — practical for general practice use.
- Patient Health Questionnaire-9 (PHQ-9): Not specific to sexual health but essential for screening comorbid depression, which is present in up to 50% of patients with sexual dysfunction.
Female Sexual Dysfunction
Female sexual dysfunction (FSD) encompasses a range of conditions that affect desire, arousal, orgasm, and pain during sexual activity. Prevalence estimates in Australian women range from 30–50%, depending on the population studied and the diagnostic criteria used. Importantly, FSD is often under-reported due to embarrassment, normalisation ("I thought it was just part of being a woman/mother/menopausal woman"), and inadequate enquiry by clinicians.
Hypoactive Sexual Desire Disorder (HSDD) / Female Sexual Interest–Arousal Disorder (FSIAD)
Characterised by persistently reduced or absent sexual interest/arousal causing personal distress. The DSM-5 combined desire and arousal into a single diagnosis (FSIAD), though many clinicians still use the term HSDD clinically.
Aetiology
- Hormonal: Menopause (natural or surgical), premature ovarian insufficiency, hyperprolactinaemia, hypothyroidism, hormonal contraception (especially combined oral contraceptives via SHBG elevation and free testosterone reduction), anti-oestrogen therapy (tamoxifen, aromatase inhibitors).
- Medications: SSRIs/SNRIs (affect up to 70% of users), antipsychotics, anticonvulsants, opioids, beta-blockers, spironolactone.
- Psychological: Depression, anxiety, stress, body image concerns, history of sexual abuse, relationship conflict, sexual boredom or monotony.
- Relational: Unresolved conflict, power imbalances, partner's sexual dysfunction, infidelity, poor communication about sexual needs.
Assessment
- Determine if the concern is lifelong (primary) or acquired (secondary), generalised or situational.
- Exclude hormonal causes: consider TSH, prolactin, free testosterone (morning sample), SHBG, oestradiol, FSH/LH if perimenopausal. class="guideline-li">Review medication list — SSRIs are the most common iatrogenic cause.
- Assess relationship quality and mental health (PHQ-9, GAD-7).
- Use the FSFI or ASEX to document baseline severity.
Management
Orgasmic Difficulties in Women
Female orgasmic disorder is defined as persistent difficulty, delay in, or absence of orgasm following a normal excitement phase, causing distress. It affects an estimated 10–15% of Australian women.
Management Approach
- Step 1 — Education: Explain the clitoral versus vaginal orgasm debate; approximately 70–80% of women require direct clitoral stimulation for orgasm. Reassure that this is normal physiology.
- Step 2 — Directed masturbation: Evidence-based technique involving progressive self-exploration, body mapping, and introduction of vibrator use. The Betty Dodson method or sensate focus programme may be recommended.
- Step 3 — Couples therapy: Where relational dynamics contribute, refer for psychosexual counselling. Address performance anxiety, communication deficits, and sexual scripts.
- Step 4 — Medication review: SSRIs are the most common medication-related cause. Options include dose reduction, drug holidays (e.g., skip Saturday dose of sertraline for weekend intimacy), switching to bupropion, or augmentation with bupropion 150 mg SR daily.
Dyspareunia & Genito-Pelvic Pain/Penetration Disorder (GPPPD)
Dyspareunia (painful intercourse) affects 8–22% of Australian women. The DSM-5 diagnosis of GPPPD merges the previously separate diagnoses of vaginismus and dyspareunia, reflecting the significant clinical overlap between these conditions.
Classification by Pain Location
Management of Dyspareunia
Male Sexual Dysfunction
Male sexual dysfunction presents to Australian general practice primarily as erectile dysfunction (ED), premature ejaculation (PE), and low libido. The Second Australian Study of Health and Relationships reported that 25% of men experienced at least one sexual difficulty in the past year, yet fewer than one-third sought medical attention.
Erectile Dysfunction (ED)
ED is defined as the persistent inability to achieve or maintain an erection sufficient for satisfactory sexual performance. It is the most common male sexual complaint in general practice and is increasingly recognised as an early marker of systemic vascular disease.
Aetiology
| Category | Examples |
|---|---|
| Vascular | Atherosclerosis, hypertension, hyperlipidaemia, diabetes mellitus, smoking, pelvic/perineal trauma |
| Neurological | Diabetic neuropathy, multiple sclerosis, spinal cord injury, post-radical prostatectomy |
| Hormonal | Hypogonadism (total testosterone <8 nmol/L), hyperprolactinaemia, hypothyroidism, Cushing's syndrome |
| Medications | Antihypertensives (thiazides, beta-blockers), antidepressants (SSRIs, TCAs), antipsychotics, anti-androgens, opioids, finasteride |
| Psychogenic | Performance anxiety, depression, relationship conflict, history of sexual trauma — classically sudden onset with preserved morning erections |
Assessment
- History: Onset (sudden vs gradual), context (situational vs generalised), morning erections (present = likely psychogenic), medication review, relationship factors, alcohol/smoking/recreational drugs.
- Examination: BP, BMI, waist circumference, secondary sexual characteristics, testicular volume, genital examination (Peyronie's plaque), peripheral pulses, digital rectal examination if prostate pathology suspected.
- Investigations: Fasting glucose or HbA1c, fasting lipid profile, total testosterone (fasting, morning 8–10 am sample), free testosterone (if total 8–12 nmol/L — the "grey zone"), SHBG, TSH, prolactin if testosterone low. Nocturnal penile tumescence testing or penile Doppler ultrasound — reserved for specialist assessment (urology/andrology referral).
- Severity assessment: SHIM/IIEF questionnaire at baseline and follow-up.
Management — Stepwise Approach
PDE5 Inhibitors — Comparison
Hypogonadism & Testosterone Replacement Therapy (TRT) in Men
Testosterone deficiency (total testosterone consistently <8 nmol/L on two fasting morning samples, or 8–12 nmol/L with symptoms + low free testosterone) affects 5–10% of Australian men over 40 and is associated with reduced libido, ED, fatigue, reduced muscle mass, increased body fat, and osteoporosis.
Indications for TRT (Endocrine Society of Australia Guidelines)
- Symptoms consistent with testosterone deficiency AND
- Total testosterone <8 nmol/L on two separate fasting morning samples, OR
- Total testosterone 8–12 nmol/L with elevated SHBG and low calculated free testosterone
Contraindications to TRT
- Prostate cancer (active or untreated) — TRT is not contraindicated after definitive treatment with undetectable PSA for >1 year in select cases
- Breast cancer in men
- Haematocrit >54% (polycythaemia)
- Severe untreated obstructive sleep apnoea
- Uncontrolled heart failure (NYHA class IV)
- Desire for fertility — TRT suppresses spermatogenesis (use clomiphene or hCG instead)
TRT Monitoring Protocol
| Test | Timing | Target / Threshold |
|---|---|---|
| Serum testosterone (trough) | 3, 6, 12 months, then annually | Mid-normal range (12–20 nmol/L) |
| PSA + digital rectal exam | 3–6 months, 12 months, then annually | PSA rise >1.4 ng/mL in 12 months or PSA >4.0 → urology referral |
| FBC — Haematocrit | 3–6 months, 12 months, then annually | Haematocrit >54% → reduce dose / increase interval / consider venesection |
| Lipids, LFTs | Baseline and annually | Monitor trends; hepatic dysfunction uncommon with modern formulations |
Male Low Libido
Low sexual desire in men is frequently multifactorial and may be under-recognised. In addition to the hormonal and medication causes described above, consider:
- Depression (PHQ-9 screening) — up to 60% of men with depression report reduced libido.
- Chronic illness: renal failure (uraemic hypogonadism), liver cirrhosis, COPD, heart failure.
- Opioid-induced hypogonadism — affects up to 90% of men on long-term opioid therapy; consider testosterone level monitoring and dose reduction where possible.
- Relationship dissatisfaction — often the primary driver; consider couples-based intervention.
- Alcohol excess — both acute intoxication and chronic alcohol dependence suppress testosterone.
Premature Ejaculation (PE)
PE is the most common male ejaculatory disorder, affecting approximately 15% of Australian men. The ISSM (International Society for Sexual Medicine) definition requires: ejaculation that always or nearly always occurs within ~1 minute of vaginal penetration (lifelong PE) or a clinically significant reduction in latency (often <3 minutes for acquired PE), inability to delay ejaculation, and negative personal consequences.
Management of PE
Special Populations
Pregnancy & Postpartum
Paediatric & Adolescent
Older Adults
Renal Impairment
Immunocompromised
Hepatic Impairment
Investigations
Investigations should be guided by the clinical presentation and suspected aetiology. The following table summarises the recommended workup for common sexual dysfunction presentations in Australian general practice.
Monitoring
Ongoing monitoring is essential for patients on pharmacotherapy for sexual dysfunction. The following schedule provides a general framework; individualise based on treatment, comorbidities, and patient preference.
Aboriginal and Torres Strait Islander Health Considerations
📚 References
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- 4. Endocrine Society of Australia (ESA). Position Statement on Testosterone Replacement Therapy in Adult Men. 2020. Prepared by Grossmann M, Ng Tang Fui M, Cheung AS.
- 5. Australasian Menopause Society (AMS). Vaginal Oestrogen and Hormone Therapy: Position Statement. 2023.
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