7.4 Sexual Functioning, Sex Therapy & Sexual Concerns
Key Takeaways
- DSM-5-TR sexual dysfunctions generally require symptoms lasting at least six months, present on approximately 75 to 100 percent of occasions, and causing clinically significant distress.
- A dysfunction is not diagnosed when it is better explained by severe relationship distress, another mental disorder, a substance or medication, or a medical condition.
- The Masters and Johnson four-phase model, Kaplan's triphasic model adding desire, and Basson's circular model of responsive desire are the frameworks the exam expects.
- Sensate focus removes the performance demand by prohibiting intercourse while structured non-demand touching is reintroduced in stages.
- The PLISSIT model scales intervention from permission through limited information and specific suggestions to intensive therapy, and defines when to refer.
Why Sexual Assessment Is a Named Task
Task 02.13 is unambiguous: assess the historic and current effects of sexual functioning on the client system. Yet sexual concerns are among the most under-asked topics in general practice, in part because clinicians fear introducing them and in part because clients wait to be asked. The exam treats failure to assess as the error, not the asking.
Sexual concerns arrive in three configurations, and the exam distinguishes them:
- Sexual difficulty as a presenting problem — the couple names it.
- Sexual difficulty as a symptom of relational process — pursuit and distance, resentment, or unresolved betrayal expressed sexually.
- Sexual difficulty as a consequence of an individual or medical factor — medication effects, illness, trauma history, hormonal change.
Formulating which configuration is in play determines the intervention, and items are frequently built on that distinction.
Models of Sexual Response
| Model | Structure | What it added |
|---|---|---|
| Masters and Johnson (1966) | Excitement, plateau, orgasm, resolution | Physiological observation; the linear four-phase sequence |
| Kaplan (1979) | Desire, excitement, orgasm | Placed desire at the front and made it clinically addressable |
| Basson (2000s) | Circular: emotional intimacy leads to receptivity, then arousal, then responsive desire | Explained that desire frequently follows arousal rather than preceding it, particularly in long-term relationships and for many women |
Basson's contribution matters clinically because a couple who believe desire must arrive spontaneously will interpret its absence as loss of love. Teaching responsive desire — that willingness plus context plus arousal can generate desire — reframes the problem from a deficit into a condition question.
DSM-5-TR Sexual Dysfunctions
The current classification includes female sexual interest/arousal disorder, female orgasmic disorder, genito-pelvic pain/penetration disorder, male hypoactive sexual desire disorder, erectile disorder, delayed ejaculation, premature (early) ejaculation, and substance/medication-induced sexual dysfunction.
Three criteria features recur on the exam:
- Duration. Symptoms have persisted for a minimum of approximately six months.
- Frequency. Symptoms occur on approximately 75 to 100 percent of occasions.
- Distress. The symptom causes clinically significant distress in the individual.
And three exclusions:
- The difficulty is not better explained by a nonsexual mental disorder, such as major depressive disorder.
- It is not attributable to severe relationship distress, such as partner violence, or other significant stressors.
- It is not attributable to a substance, medication, or medical condition.
That second exclusion is deeply systemic and is often the keyed reasoning: when a couple is in severe distress or when violence is present, a sexual dysfunction diagnosis is not made, and the relational and safety issues are addressed first.
Note also the specifiers: lifelong versus acquired and generalized versus situational. An erectile difficulty that is absent during masturbation and present only with a specific partner is situational and acquired, which points toward relational or contextual explanation rather than a primarily physiological one.
Medical, Medication, and Substance Contributors
Screening for physiological contributors is a competence requirement, and referral is the therapist's action, not diagnosis. Common contributors include diabetes and vascular disease, hormonal changes including menopause and low testosterone, pelvic surgery, neurological conditions, chronic pain, and substance use.
Medication effects are especially exam-relevant because they intersect with task 03.21. Selective serotonin reuptake inhibitors commonly cause delayed orgasm, reduced desire, and anorgasmia. Antihypertensives, some antipsychotics through hyperprolactinemia, hormonal contraceptives, and heavy alcohol use also contribute. The correct action when a sexual difficulty began within weeks of a medication change is to obtain consent and coordinate with the prescriber, never to advise the client to alter the dose.
Interventions
Sensate focus, developed by Masters and Johnson, remains the core behavioral intervention. Its logic is the removal of performance demand: intercourse and often genital touching are explicitly prohibited while the couple completes staged, non-demand touching assignments focused on sensation rather than outcome. Progression through the stages is contingent on comfort, and the prohibition is what makes the exercise work. On the exam, an option that permits intercourse during early sensate focus stages misunderstands the mechanism.
The PLISSIT model (Annon) organizes intervention by intensity and defines the referral threshold:
- P — Permission. Normalizing and giving explicit permission to have and discuss the concern. Within every therapist's scope.
- LI — Limited Information. Correcting specific misinformation about anatomy, response, aging, or medication effects.
- SS — Specific Suggestions. Structured behavioral assignments such as sensate focus, scheduling, or stimulus control. Requires training.
- IT — Intensive Therapy. Specialized sex therapy for complex cases including trauma-linked pain, paraphilic disorders, or entrenched dysfunction. Refer if this exceeds your training.
Additional systemic interventions include restructuring the pursuit-withdrawal cycle that so often organizes desire discrepancy, addressing the sexual consequences of betrayal, and psychoeducation about normative change across the life cycle.
Sexual Orientation, Gender Identity, and Affirmative Practice
Knowledge area 51 names sexual orientation and gender identity. The professional standard is affirmative practice. Efforts to change sexual orientation or gender identity are ineffective and harmful, are prohibited by professional consensus, and are banned for minors in many jurisdictions; a therapist who offers them violates ethical standards regardless of client or parental request. AAMFT Standard 1.1 bars discrimination on the basis of sexual orientation, sexual or gender expression, and gender identity.
Clinically, the systemic work often centers on the family's response rather than the member's identity: family acceptance is a strong protective factor against depression, substance use, and suicide attempts in sexual and gender minority youth, and family rejection is a corresponding risk factor. Items commonly test whether the therapist works with the family's process while unambiguously affirming the member.
Sexual Abuse and Its Sexual Sequelae
Knowledge area 52 names sexual abuse treatment for victims, perpetrators, and their families. Survivors frequently present with sexual difficulties including pain, avoidance, dissociation during intimacy, or compulsive sexual behavior. Two rules govern the work.
First, do not begin behavioral sex therapy assignments while trauma symptoms are unstabilized. Sensate focus can trigger dissociation and flashbacks when the survivor lacks grounding capacity. Stabilization precedes exposure to intimacy tasks.
Second, the non-abusing partner is part of the treatment. Partners commonly interpret avoidance as rejection. Psychoeducation about trauma responses, explicit consent and stop signals during any touch-based assignment, and pacing controlled by the survivor are the standard adaptations.
A couple reports that the husband has had erectile difficulties for eight months. He reports full erections during solitary masturbation and morning erections, and difficulty only during partnered sex, which began shortly after the couple's conflict about his job loss intensified. How is this best characterized?
A couple in the second week of sensate focus reports that the assignments are going well and asks whether they may resume intercourse early since they feel ready. What is the appropriate response?
A 16-year-old discloses to a family therapist that she is a lesbian. Her parents ask the therapist to help her 'work through this phase' and consider a program that changes orientation. How should the therapist respond?
Under DSM-5-TR, which circumstance precludes diagnosing a sexual dysfunction?