Sexual dysfunction

Sexual dysfunction refers to a persistent disturbance in sexual desire, arousal, orgasm, or pain associated with sexual activity that causes significant personal distress or interpersonal difficulty. It may affect both males and females and can arise from psychological, medical, hormonal, neurological, relational, or medication-related causes.

Sexual dysfunction is common but frequently underreported due to stigma, cultural beliefs, and embarrassment. Proper evaluation is essential since it may indicate underlying systemic or psychiatric illness.

Classification

Sexual dysfunction is broadly categorized into:

Male Sexual Dysfunction

• Erectile dysfunction

• Premature ejaculation

• Delayed ejaculation

• Hypoactive sexual desire disorder

Female Sexual Dysfunction

• Female sexual interest/arousal disorder

• Orgasmic disorder

• Genito-pelvic pain/penetration disorder

• Dyspareunia

• Vaginal dryness

Risk Factors

Medical Factors

• Diabetes mellitus

• Cardiovascular disease

• Hypertension

• Chronic kidney disease

• Hormonal disorders (hypogonadism, thyroid disease)

• Neurological disorders

• Chronic pain conditions

Psychological Factors

• Depression

• Anxiety disorders

• Stress

• Relationship conflict

• History of sexual trauma

Lifestyle Factors

• Smoking

• Alcohol abuse

• Substance misuse

• Physical inactivity

• Obesity

Medication-Related Causes

• Antidepressants (especially SSRIs)

• Antipsychotics

• Antihypertensives

• Hormonal therapies

• Sedatives

Signs and Symptoms

Desire Disorders

• Reduced libido

• Lack of sexual thoughts or fantasies

Arousal Disorders

• Erectile difficulty

• Reduced vaginal lubrication

• Difficulty maintaining arousal

Orgasmic Disorders

• Delayed orgasm

• Absence of orgasm

• Reduced orgasm intensity

Sexual Pain Disorders

• Pain during intercourse

• Fear or avoidance of penetration

Associated Features

• Relationship distress

• Performance anxiety

• Emotional withdrawal

Diagnostic Criteria

Diagnosis is clinical and requires:

• Persistent or recurrent sexual difficulty

• Duration ≥ 6 months

• Significant personal distress

• Not better explained by severe psychiatric illness, substance use, or medical emergency

Assessment should include:

• Sexual history

• Medical history

• Medication review

• Psychosocial evaluation

• Relationship assessment

Investigations

Investigations aim to identify reversible causes.

Laboratory Tests

• Fasting blood glucose / HbA1c

• Lipid profile

• Serum testosterone (morning sample in males)

• Thyroid function tests

• Prolactin level

• Renal and liver function tests

Additional Evaluation

• Cardiovascular risk assessment

• Depression and anxiety screening

• Pelvic examination (female)

• Genital examination (male)

Specialized testing when indicated:

• Penile Doppler ultrasound

• Nocturnal penile tumescence testing

Management

Management requires a biopsychosocial approach.

Non-Pharmacological Management

Education and Counseling

• Provide reassurance and normalize discussion

• Address myths and cultural misconceptions

• Sexual health education

Psychotherapy

• Cognitive Behavioural Therapy (CBT)

• Sex therapy

• Couples therapy

• Anxiety and depression management

Lifestyle Modification

• Smoking cessation

• Reduce alcohol intake

• Regular physical exercise

• Weight reduction

• Adequate sleep

Medication Review

• Consider discontinuation or substitution of drugs causing dysfunction where possible.

Pharmacological Management

General Principles

• Treat the underlying medical or psychiatric condition first.

• Pharmacotherapy should be individualized.

Erectile Dysfunction (Selected Patients)

Phosphodiesterase-5 inhibitors may be used under medical supervision:

• Sildenafil

• Tadalafil

• Vardenafil

⚠ Caution

• May cause severe hypotension when combined with nitrates.

• Cardiovascular assessment is required before prescription.

• Self-medication is strongly discouraged.

Hormonal Therapy

Indicated only when laboratory-confirmed deficiency exists:

• Testosterone replacement therapy (hypogonadism)

Female Sexual Dysfunction

Management may include:

• Vaginal lubricants or moisturizers

• Local estrogen therapy (post-menopausal women)

Referral Indications

Refer to specialist when:

• Persistent dysfunction despite treatment

• Suspected endocrine disorder

• Complex psychiatric illness

• Severe relationship conflict

• Suspected anatomical abnormality

Referral options:

• Urologist

• Gynecologist

• Psychiatrist

• Endocrinologist

• Certified sex therapist

Complications

Untreated sexual dysfunction may lead to:

• Relationship breakdown

• Depression and anxiety

• Reduced quality of life

• Low self-esteem

• Treatment non-adherence in chronic disease patients

Prevention

• Early treatment of chronic diseases

• Mental health support

• Healthy lifestyle promotion

• Rational prescribing practices

• Open patient–clinician communication

• Routine sexual health screening in chronic illness

Patient Education

Patients should be advised that:

• Sexual dysfunction is common and treatable.

• Many cases are reversible once underlying causes are managed.

• Avoid unprescribed sexual enhancement medications.

• Psychological wellbeing significantly affects sexual performance.

• Early consultation improves outcomes.

Prognosis

Outcome depends on the underlying cause. Psychogenic and medication-related dysfunctions generally have good prognosis when appropriately managed. Chronic vascular or neurological causes may require long-term treatment.