Learning objectives
- Explain the sexual response cycle and classify sexual disorders using modern, non-stigmatising terminology.
- Distinguish sexual dysfunction from normal variation, relationship distress, gender incongruence and paraphilic interests.
- Take a sensitive sexual history and perform focused medical, psychological, relationship and safeguarding assessment.
- Provide a logical plan from first contact through immediate care, investigations, pharmacological and psychological treatment, health-team interventions and prevention.
- Recognise emergencies including sexual violence, priapism, severe genital pain, paraphilic risk and suicide risk.
1. Sexual health and the sexual response cycle
WHO describes sexual health as physical, emotional, mental and social wellbeing in relation to sexuality, including safe and pleasurable experiences free from coercion, discrimination and violence. Sexual function is influenced by desire, arousal, orgasm, pain, relationship, culture, health, medicines and safety.
| Phase/domain | Typical physiology | Possible clinical problem |
|---|---|---|
| Desire | Interest, motivation, fantasies and willingness; may be spontaneous or responsive to intimacy. | Low desire, absent desire, distressing desire discrepancy or compulsive sexual behaviour. |
| Excitement/arousal | Penile erection, clitoral/genital vasocongestion, lubrication, increased heart rate and muscle tension. | Erectile difficulty, inadequate lubrication, genital arousal disorder or arousal that is painful/distressing. |
| Orgasm/ejaculation | Peak pleasure and rhythmic pelvic contractions; ejaculation is a related but distinct male reproductive event. | Delayed orgasm, anorgasmia, premature/delayed/absent ejaculation. |
| Resolution | Muscle relaxation and return to baseline; a refractory period may occur, especially after ejaculation. | Post-coital pain, distress, persistent genital arousal or difficulty returning to baseline. |
The phases are not a compulsory linear sequence. Many healthy people experience desire after arousal or do not orgasm every time. Diagnose a disorder only when the difficulty is persistent/recurrent, clinically significant and distressing to the person—not merely because a partner, culture or clinician expects a particular performance.
2. Classification
| Group | Modern clinical examples | Key distinction |
|---|---|---|
| Gender-related health | Gender incongruence; gender dysphoria may describe distress in some systems. | Gender identity itself is not a mental disorder. Assess distress, safety and desired gender-affirming care. |
| Sexual dysfunctions | Desire/arousal disorders, erectile dysfunction, orgasmic disorders, premature/delayed ejaculation, genito-pelvic pain/penetration disorder. | Symptoms cause personal distress or interpersonal difficulty and require medical and psychosocial assessment. |
| Paraphilic disorders | Voyeuristic, exhibitionistic, frotteuristic, sexual sadism, sexual masochism, fetishistic, paedophilic and other patterns. | An unusual interest is not automatically a disorder; risk, non-consent, impairment or harm are central. Protect children and non-consenting persons. |
| Sexual and relationship problems | Desire discrepancy, performance anxiety, effects of trauma, coercion, violence, infertility or illness. | May be a relational or safety problem rather than an individual psychiatric disorder. |
| Compulsive sexual behaviour | Persistent loss of control over repetitive sexual behaviour with impairment or harm. | Differentiate from high libido, consensual sex or moral disapproval alone. |
The supplied teaching slides use older labels such as “frigidity,” “impotence,” “gender identity disorder” and “homosexuality as a disorder.” Use them only as historical terminology. Current practice uses low desire, erectile dysfunction, gender incongruence and sexual orientation; homosexuality is not a disease and conversion therapy is unethical and harmful.
3. First contact: how to open the consultation
- Prepare privacy: quiet room, door closed, interpreter/chaperone where preferred, no unnecessary observers and secure records.
- Explain confidentiality: state ordinary limits—serious risk, abuse of a child or legal safeguarding duties—and ask permission before sensitive questions or examination.
- Normalise: “I ask all patients about sexual health because illness and medicines can affect it.”
- Use open questions: “What brings you in?” “What has changed?” “How is this affecting you?”
- Use the patient’s language: avoid assumptions about partner gender, anatomy, orientation, pregnancy or consent.
- Clarify the goal: comfort, pleasure, erection, lubrication, orgasm, fertility, intimacy, safety, identity support or treatment of a medical problem.
4. Comprehensive assessment
Sexual history
- Partners: current partners, relationship safety, consent and satisfaction.
- Practices: activities relevant to symptoms and exposure; never ask from curiosity.
- Protection: condoms, contraception, PrEP/PEP, HIV/STI tests, vaccination and pregnancy intention.
- Past history: previous sexual function, trauma, STI, pregnancy, childbirth, pelvic/prostate disease, surgery and treatment.
- Present problem: onset, duration, lifelong/acquired, situational/generalised, severity, distress, triggers, pain and partner impact.
- Medicines/substances: SSRIs/SNRIs, antipsychotics, opioids, antihypertensives, finasteride, hormonal therapies, alcohol, cannabis, stimulants and herbs.
- Psychological context: depression, anxiety, PTSD, body image, performance fear, sleep and compulsive behaviour.
Medical examination and investigations
With consent, assess blood pressure, BMI, vascular risk, thyroid, secondary sexual characteristics, genital/pelvic or neurological signs relevant to the complaint. Consider urinalysis, pregnancy test, HIV/STI testing, glucose/HbA1c, lipids, renal/liver function, thyroid tests, morning testosterone when androgen deficiency is suspected, prolactin when indicated, and targeted pelvic/prostate assessment. Do not order indiscriminate hormone panels or invasive examinations.
Erectile dysfunction may be an early marker of vascular disease. Pain, discharge, bleeding, genital lesions, fever, infertility, sudden loss of function, neurological symptoms or trauma require disease-specific referral. Obtain collateral history only with consent, except when immediate safeguarding requires action.
5. Immediate and emergency management
Sexual assault or suspected abuse
- Ensure immediate safety and treat bleeding, shock, strangulation, fractures, genital/anal injury and acute trauma.
- Use a private, trauma-informed approach; believe the disclosure, avoid blame and do not force repeated retelling.
- Obtain informed consent before examination, photographs, evidence collection or police contact, subject to child-protection/legal requirements.
- Assess emergency contraception, HIV PEP, hepatitis B vaccination, STI prophylaxis/testing, pregnancy and tetanus where indicated.
- Document exact words, injuries, times, examination findings, samples and referrals objectively; preserve forensic evidence according to local protocol.
- Provide psychological first aid, safeguarding referral and planned follow-up. Do not send a child or dependent adult back to a suspected perpetrator without a safety plan.
Priapism
An erection lasting more than 4 hours, especially painful and rigid, is an emergency because ischaemia can cause permanent erectile dysfunction. Ask about sickle-cell disease, medicines, trauma and substances; do not attempt home treatment. Urgent urology care may require aspiration, saline irrigation and intracavernosal phenylephrine under monitoring.
Other urgent presentations
- Acute genital pain, torsion, severe infection, gangrene, uncontrolled bleeding or urinary retention.
- Sexual behaviour driven by mania, psychosis, intoxication or delirium with risk to self/others.
- Child sexual abuse, trafficking, coercive sex, intimate-partner violence or inability to consent.
- Suicidal thoughts after sexual trauma, infertility, HIV diagnosis, gender-related violence or relationship breakdown.
6. Management aims and a logical treatment plan
Aims
- Protect safety, consent, dignity and reproductive/sexual rights.
- Relieve pain, distress and functional impairment.
- Identify and treat medical, medication, psychological, relationship and social causes.
- Restore satisfactory function defined by the patient—not performance imposed by another person.
- Prevent STI, HIV, pregnancy complications, injury, relapse, coercion and treatment harm.
Step 1: Explain and agree a formulation
Explain that sexual function is biopsychosocial. Validate symptoms, correct myths and include the partner only with permission. Address unrealistic expectations, consent, communication and pleasurable non-penetrative intimacy. Make a written plan with review date and red flags.
Step 2: Treat reversible causes
- Manage diabetes, hypertension, cardiovascular disease, thyroid disease, anaemia, menopause-related symptoms, pelvic infection, pain, neurological disease and sleep disorder.
- Review causative medicines with the prescriber; consider timing, dose adjustment or safer alternatives without abruptly stopping psychiatric or cardiovascular treatment.
- Reduce smoking, harmful alcohol, stimulants and opioids; improve sleep, exercise and nutrition.
- Provide STI/HIV care, contraception, fertility counselling and relationship/violence support.
Step 3: Psychological and relationship interventions
- Sex therapy and CBT for performance anxiety, avoidance, negative beliefs and desire discrepancy.
- Trauma-focused therapy when safe and wanted; never use exposure or couple therapy while violence/coercion is active.
- Mindfulness, sensate-focus exercises, gradual non-demand pleasuring, communication training and pelvic-floor physiotherapy.
- Couples work only with consent, privacy and safety for both partners; individual therapy may be safer where there is coercion.
7. Management of common dysfunctions
Low sexual desire
Assess depression, anxiety, trauma, relationship conflict, pain, sleep, pregnancy/postpartum status, menopause, prolactin/thyroid disease, hypogonadism and medicines. There is no universal “libido tablet.” Treat the cause, address stress and relationship safety, and refer for psychosexual therapy. Testosterone or other hormones require documented deficiency and specialist monitoring; avoid unregulated aphrodisiacs.
Erectile dysfunction
Assess cardiovascular risk, morning erections, diabetes, neurological disease, medicines and relationship/performance factors.
- Sildenafil: typical starting dose 50 mg orally about 1 hour before sexual activity; adjust to 25–100 mg, maximum once daily. Sexual stimulation is required.
- Tadalafil: commonly 10 mg before sexual activity, or 2.5–5 mg once daily in selected patients; duration is longer.
- Contraindications/cautions: never combine PDE-5 inhibitors with nitrates or “poppers”; caution with alpha-blockers, hypotension, recent major cardiovascular events, severe hepatic/renal disease and strong CYP3A4 inhibitors. Priapism, sudden vision/hearing loss or severe chest pain requires urgent care.
- If tablets fail or are unsuitable, refer for vacuum devices, intra-urethral/intracavernosal therapy or specialist surgery; do not self-inject.
Premature ejaculation
Assess lifelong versus acquired symptoms, erection quality, perceived control, distress, relationship impact, prostatitis/thyroid disease, anxiety and medicines. Behavioural methods include stop–start, squeeze, pelvic-floor work, condoms and psychosexual therapy. Where locally registered and specialist-prescribed, dapoxetine is often started at 30 mg 1–3 hours before sex, not more than once in 24 hours; 60 mg may be considered only after review. Warn about dizziness, syncope, nausea, interactions and serotonin toxicity. Topical anaesthetic requires correct dosing and condom/washing advice to prevent partner numbness. Avoid unsupervised tramadol.
Delayed orgasm or anorgasmia
Review SSRIs, antipsychotics, alcohol, diabetes, neurological disease, pain, trauma, stimulation, expectations and relationship factors. Treat medical causes, adjust medicines with the prescriber, use sex therapy and teach communication and adequate stimulation. Do not assume a partner’s technique or the patient’s orientation is the diagnosis.
Genito-pelvic pain, dyspareunia and vaginismus
Exclude infection, pregnancy, vulval dermatoses, endometriosis, pelvic-floor overactivity, menopause-related dryness, trauma and malignancy. Treat infection or inflammation, use lubricant/moisturiser, pelvic-floor physiotherapy, graded dilators and trauma-informed CBT/sex therapy. Stop painful penetration; never force an examination. Severe pain, fever, bleeding or pregnancy requires urgent medical assessment.
Female sexual interest/arousal and genitourinary symptoms
Assess pain, dryness, menopause, postpartum change, medicines, depression, relationship and cultural pressure. Local vaginal oestrogen may help genitourinary menopause symptoms after contraindication review; refer complex cases. Systemic hormones or androgen therapy require specialist evaluation and monitoring.
8. Gender incongruence and sexual orientation
Gender identity and sexual orientation are not disorders. Assess the person’s goals, distress, violence, discrimination, self-harm, reproductive needs and desired gender-affirming referral. Provide preventive care based on anatomy and exposures, including contraception, cervical/breast/prostate screening, STI/HIV testing and vaccination. Do not attempt to change orientation. If distress is present, treat depression, anxiety, trauma, stigma and safety—not identity.
9. Paraphilic interests and paraphilic disorders
A paraphilic interest is not automatically a disorder. A paraphilic disorder is considered when there is persistent distress/impairment, inability to control behaviour, or harm/risk involving a non-consenting person. Consent must be informed, freely given, reversible and impossible for a child or incapacitated person.
- Examples discussed in the supplied slides include voyeuristic, exhibitionistic, frotteuristic, fetishistic, sexual sadism, sexual masochism and paedophilic patterns. Use neutral language; do not provide sexualised detail.
- Assess victims, access to children/non-consenting people, plans, weapons, intoxication, previous offences, psychosis/mania, suicidality and willingness to accept safeguards.
- Management is specialist-led: CBT/relapse prevention, impulse-control work, treatment of depression/substance use, safeguarding and legal coordination. SSRIs may reduce intrusive sexual thoughts/compulsivity in selected patients.
- Anti-androgen or GnRH treatment is not routine; it requires informed consent, specialist monitoring of bone, metabolic, hepatic, mood and reproductive effects, and legal/ethical review.
- Never recommend outdated aversion therapies or orientation-change treatments. Protect possible victims and follow mandatory reporting law.
10. Health-team and nursing interventions
- Provide privacy, a chaperone if requested, culturally safe communication and a non-judgemental attitude.
- Assess pain, injury, STI/pregnancy risk, mental state, suicide risk, coercion, abuse and ability to consent.
- Explain each procedure, obtain consent, maintain draping and stop immediately when the patient withdraws consent.
- Administer prescribed medicines safely; monitor blood pressure, dizziness, priapism, allergic reactions, sexual adverse effects and adherence.
- Teach condom use, contraception, HIV/STI prevention, pelvic-floor exercises, medicine interactions and emergency return signs.
- Coordinate urology, gynaecology, psychiatry, psychology, HIV/STI, endocrinology, pelvic physiotherapy, social work and safeguarding services.
- Document the patient’s words, consent, examination offered/declined, findings, risks, education, referrals and follow-up without stigmatising labels.
11. Prevention and health promotion
- Comprehensive sexuality education covering consent, boundaries, anatomy, contraception, STI/HIV prevention and respectful relationships.
- Prevent sexual violence through safe schools/workplaces, child protection, bystander action, economic support and rapid survivor services.
- Promote diabetes, hypertension, HIV, cancer, endocrine and mental-health screening; treat chronic disease early.
- Encourage sleep, physical activity, smoking cessation, moderate/no alcohol, medication review and safe internet use.
- Offer vaccination (HPV, hepatitis B where indicated), condoms, PrEP/PEP and regular STI testing according to risk.
- Reduce stigma around sexual dysfunction, infertility, disability, menopause, HIV and gender diversity so people seek care earlier.
Clinical cases
Quick self-test
- When does a sexual difficulty become a clinical dysfunction?
- List four medical causes of erectile or arousal problems.
- What is the most dangerous drug interaction with sildenafil?
- How does a paraphilic interest differ from a paraphilic disorder?
- What are the first priorities after sexual assault?
Answers
- When persistent/recurrent difficulty causes personal distress or significant interpersonal/functional impairment and is not simply consensual variation or cultural disapproval.
- Diabetes/vascular disease, thyroid or prolactin disorder, neurological disease, pelvic disease, medication effects, depression, alcohol/opioids and menopause-related symptoms.
- Nitrates or nitrite “poppers,” which can cause severe hypotension; also use caution with alpha-blockers and cardiovascular instability.
- An interest alone is not necessarily illness; disorder involves significant distress/impairment, loss of control or harm/risk to a non-consenting person.
- Immediate safety and injury care, consent-based trauma-informed assessment, emergency contraception/HIV PEP/STI care, documentation, safeguarding and follow-up.
Key take-home messages
- Sexual healthcare begins with privacy, consent, respect and accurate terminology.
- Assess biological, psychological, relationship, medicine, substance and safety causes together.
- Treat emergencies first; then combine medical treatment, psychosexual therapy, relationship work and prevention.
- Sexual orientation and gender identity are not disorders; never offer conversion practices.
- Protect children and non-consenting people, document objectively and refer complex risk urgently.
References and further reading
- SlideShare. Sexual disorder: reference presentation.
- World Health Organization. Sexual health: WHO sexual-health overview.
- NICE Clinical Knowledge Summary. Erectile dysfunction: NICE CKS.
- American Urological Association. Erectile dysfunction guideline: AUA guideline summary.
- Clinical Practice Guidelines for Management of Sexual Dysfunction: peer-reviewed guideline framework.
