7 Old age psychiatry7.11 Psychosexual health in older people

7.11 Sexuality and psychosexual disorders in old age

7 min read2 figures

Written by Resident Doctor Committee · Published

Sexual activity in later life

In the 2012 to 2013 English Longitudinal Study of Ageing, 54% of men and 31% of women over 70 reported sexual activity in the previous year.

Age group

Men active in past year

Women active in past year

70 to 79

59.3%

34.3%

80 and over

31.1%

14.2%

  • Partner availability partly explains the sex difference, and inactivity does not mean lack of desire.

  • Illness, disability and care home routines can restrict intimacy without removing the wish for it.

  • Care Quality Commission and nursing guidance cover relationships, identity, appearance, sensuality and privacy as well as sexual activity.

Normal ageing and where dysfunction begins

Sex

Normal ageing change

Needs assessment

Men

Slower, less firm erections needing more direct stimulation; less ejaculatory volume and force; longer refractory period

Persistent difficulty achieving the erection needed for wanted activity

Women

Falling oestrogen thins and dries vulvovaginal tissue and reduces lubrication

Bleeding, which is not put down to atrophy automatically

  • Erectile dysfunction may precede symptomatic vascular disease, so check blood pressure, glucose, lipids and cardiovascular risk rather than blaming age.

  • Genitourinary syndrome of menopause comprises dryness, burning, painful sex, urinary urgency and recurrent infection.

  • Women are offered lubricants and moisturisers, with local vaginal oestrogen considered; symptoms often recur when they stop.

  • The National Institute for Health and Care Excellence supports considering testosterone for menopause-associated low desire when hormone replacement therapy alone fails; this is off-label in the UK.

Physical illness

Condition

How it affects sex

What helps

Diabetes

Vascular and autonomic effects on erection, lubrication and ejaculation

Treat diabetes and vascular risks

Atherosclerosis, hypertension

Reduced genital blood flow

Cardiovascular treatment

Hypogonadism, thyroid disease

Low desire or arousal with systemic symptoms

Hormonal assessment

Parkinson's disease

Motor and autonomic problems, fatigue, mood, drug effects

Time activity around motor treatment; review dopamine agonists

Stroke

Weakness, sensory change, communication difficulty, fear

Safety advice, positioning, communication support

Spinal disease, cauda equina, peripheral neuropathy

Altered reflexes or sensation

Neurological assessment

Arthritis, chronic pain

Restricted movement and discomfort

Pain treatment, comfortable positions

Cardiac, respiratory disease

Exertional limitation, orthopnoea, anxiety

Assess exercise tolerance

Prostate or pelvic surgery, radiotherapy

Nerve injury, tissue change, incontinence

Urology or gynaecology input, continence care

After cardiac illness, advice on returning to sex is individual: a comparison with climbing stairs does not replace assessment of unstable symptoms.

Medicines and substances

Ask directly and record baseline sexual function before prescribing psychotropics. A temporal link suggests a drug effect but does not exclude illness or relationship factors.

Drug group

Examples

Mechanism

Point to remember

Selective serotonin reuptake inhibitors, serotonin and noradrenaline reuptake inhibitors

All

Serotonergic effects on desire, arousal, orgasm

Delayed or absent orgasm is common; ask rather than wait

Antidepressants with lower sexual burden

Mirtazapine, bupropion, agomelatine, moclobemide, vortioxetine

Differing receptor effects

Weigh the whole treatment profile

Prolactin-raising antipsychotics

Risperidone, paliperidone, amisulpride, sulpiride, haloperidol

D2 blockade raises prolactin and may suppress gonadal function

Ask about galactorrhoea; consider bone health

Antipsychotics with lower prolactin liability

Aripiprazole, quetiapine, clozapine, brexpiprazole, cariprazine, lurasidone

Less prolactin rise

Lurasidone can raise prolactin; low prolactin does not guarantee normal function

Alpha-1 blockers

Risperidone, chlorpromazine, trazodone, doxazosin

Peripheral adrenergic effects

Erectile or ejaculatory problems; priapism needs emergency care

Anticholinergics

Oxybutynin, tricyclics, hyoscine, procyclidine

Impaired autonomic response

Total burden also risks delirium, retention, falls

Antiandrogens

Finasteride, dutasteride, cyproterone, gonadotrophin-releasing hormone analogues

Reduced androgen activity

Finasteride and dutasteride warnings include psychiatric and possibly persistent sexual effects

Opioids

All

Suppress the hypothalamic-pituitary-gonadal axis

Consider hypogonadism with low desire and fatigue

Alcohol

None

Acute impairment; chronic neurological, hepatic, gonadal effects

Older people may be more sensitive to a given intake

Thiazide diuretics

Thiazide-like drugs too

Uncertain

Some trials report more erectile difficulty

Beta-blockers

None

Effects vary

Do not assume a class-wide causal effect

Follow the tuberoinfundibular pathway from the hypothalamus to the pituitary: D2 blockade here is why prolactin-raising antipsychotics such as risperidone, amisulpride and haloperidol can suppress gonadal function. User:Slashme ; Patrick J. Lynch; User:Fvasconcellos. CC BY-SA 4.0, via Wikimedia Commons

Small beta-blocker studies show that expectation shapes reported side effects, so explain risks neutrally without withholding information.

Psychological and relationship factors

  • Bereavement can bring guilt about new relationships and family objections.

  • Surgery, stomas, tremor, incontinence or altered appearance can erode confidence; practical continence and positioning advice helps.

  • Depression reduces desire, and its treatment may add difficulty.

  • Performance anxiety shifts attention from sensation to monitoring and reinforces failure.

  • A shift from partner to carer can alter intimacy, but do not assume the relationship has ended.

Assessment without assumptions

  • Ask who matters to the person and whether they want to discuss intimacy; do not assume heterosexuality, a living partner or penetrative sex.

  • Older LGBTQ+ people (lesbian, gay, bisexual, trans and queer) may have faced criminalisation or harmful treatment and fear disclosure in care settings.

  • Explain confidentiality, use inclusive records, and continue organ-based screening and hormone care for trans people.

  • Assess onset and situations, physical health, medicines, substances, mood, cognition and goals, including whether activity is wanted, whether anyone applies pressure and whether capacity needs assessment.

Treatment

  • Treat pain, depression, endocrine disease, infection and menopausal symptoms, and review drug effects before adding treatment, balancing change against relapse risk.

  • Phosphodiesterase type 5 inhibitors can help suitable older men but treat erection, not low desire.

  • They interact dangerously with nitrates, nicorandil and riociguat; recent major cardiovascular events, unstable angina or significant hypotension need medical assessment first.

  • Adapt psychosexual work for mobility and pain, and refer to specialist services: age alone should not restrict access.

Note that the pathway starts with sexual stimulation releasing nitric oxide: PDE5 inhibitors only stop cGMP from being broken down, so they help erection but do not treat low desire. Drawn for MRCPsychiatrist

Capacity to consent to sexual relations

In England and Wales, capacity is presumed and support is given. Incapacity needs an impairment or disturbance of mind or brain causing inability to understand, retain, use or weigh relevant information, or to communicate the decision.

  • Section 27 of the Mental Capacity Act excludes consent to sexual relations from best-interests decisions: no relative, attorney, deputy or court can consent for the person.

  • A Local Authority v JB (2021): the Supreme Court held that relevant information includes the other person's ability and continuing agreement to participate, which matters when the person initiates sex.

  • The person needs a basic, not expert, understanding of the nature of the act, that either person can refuse or withdraw, and pregnancy and infection risks.

  • Do not test whether the partner is a wise choice or whether the person could parent.

  • Neither marriage nor apparent compliance establishes consent, and dementia or delirium can change capacity, so reassess when needed.

  • Scotland uses the Sexual Offences (Scotland) Act 2009; Northern Ireland has separate law, so do not transplant the English test.

Sexual offences and care settings

The Sexual Offences Act 2003 applies in England and Wales.

Sections

Offences

Capacity requirement

30 to 33

Mental disorder impedes choice

Inability to refuse because of the disorder

38 to 41

Care worker offences against a person with mental disorder

Apply despite capacity and apparent agreement

  • Spouse, civil partner and pre-existing relationship exceptions need legal advice; Scotland has a separate abuse of trust offence.

  • Blanket bans on relationships can be disproportionate, while absent boundaries expose residents to harm; use individual assessment, relationships policies, training and safeguarding procedures.

When one partner has dementia

  • If capacity for sexual activity is absent, it cannot lawfully proceed on anyone else's consent, though other wanted closeness may continue.

  • The Court of Protection can decide capacity but cannot consent to sex for the person.

  • Behaviour alone does not bypass the law, so attend to signs of willingness, reluctance or distress.

  • In a new relationship between residents, assess each separately: cognitive impairment does not mean incapacity, family objections do not override capacitous choices, and neither person is presumed the perpetrator.

Sexual disinhibition

Describe the behaviour and context before labelling it. Estimates in dementia range from about 2 to 17%.

Cause

Distinguishing features

First action

Delirium

Acute fluctuation, inattention, altered arousal

Find and treat causes

Mania

Mood change, less sleep, pressured speech

Treat the episode

Behavioural variant frontotemporal dementia

Other behavioural or executive changes

Environmental and behavioural support

Dopamine agonist impulse control disorder in Parkinson's disease

New compulsive sexual behaviour, sometimes gambling or shopping

Gradual medication review with neurology

Local physical discomfort

Touching linked to infection, retention, skin irritation, constipation

Treat physical needs

Disorientation

Misidentification, entering the wrong room or bed

Redirect, protect others

Unmet need for intimacy

No private space or meaningful activity

Provide privacy and occupation

  • Private masturbation is not inherently pathological.

  • For unwanted behaviour, record antecedents, behaviour and consequences, and use consistent redirection; a neurological cause does not remove safeguarding needs.

  • Restrictive clothing needs a proportionate legal and care assessment.

  • No drug is licensed for dementia disinhibition: an SSRI is sometimes tried after other measures, and antipsychotics need a compelling indication given stroke and mortality risk.

  • Cyproterone and some triptorelin products have restricted indications for reducing male sexual drive, not a general licence for dementia disinhibition; cyproterone carries meningioma risk, and androgen suppression threatens bone.

  • Surgically implanted hormones to reduce male sexual drive fall under section 57 safeguards: valid consent plus independent certification.

  • Document the indication, legal basis, target, monitoring and withdrawal plan.