How to Become a Sex Therapist in California
How to Become a Sex Therapist in California
There is no California license called "sex therapist." The state does not issue one, and the Board of Behavioral Sciences does not register one. Sex therapy is a clinical specialization that already-licensed mental health professionals add to an existing license, most often a Licensed Marriage and Family Therapist (LMFT), Licensed Clinical Social Worker (LCSW), Licensed Professional Clinical Counselor (LPCC), or licensed psychologist. Understanding that one fact reorders the whole question. The path is not "get a sex therapy license." It is "become a licensed psychotherapist, then build specialized competence in treating sexual concerns." This post explains what sex therapists do, the underlying license you need in California, the AASECT certification pathway that has become the recognized standard, and why the training that actually prepares you to do this work is the kind that has you practicing skills, not just absorbing information. For a related read, see our companion post on why sex therapy training needs deliberate practice, not just lectures.
What Does a Sex Therapist Do?
Sex therapy is talk therapy. A sex therapist helps individuals and couples with concerns such as differences in desire, difficulties with arousal or orgasm, pain during sex, the effects of medical conditions and medications on sexual function, the aftermath of sexual trauma, questions of sexual identity and orientation, and the intimacy and communication problems that surface in relationships. The American Association of Sexuality Educators, Counselors and Therapists (AASECT) describes the certified sex therapist as a licensed mental health professional trained to assess, diagnose, and provide in-depth psychotherapy for complex sexual issues.
One point is worth stating plainly because it is a common source of confusion. Legitimate sex therapy involves no physical contact, no nudity, and no sexual activity of any kind between therapist and client. It is conducted the same way any other psychotherapy is conducted, through conversation. Professional ethics codes, including AASECT's, prohibit sexual contact with clients without exception. A sex therapist works with what clients say, feel, and do outside the room, not with their bodies inside it.
Is "Sex Therapist" a Separate License in California?
No. California licenses psychotherapists by discipline, not by specialty. The Board of Behavioral Sciences issues the LMFT, LCSW, and LPCC licenses, and the Board of Psychology issues the psychologist license. None of these is a "sex therapist" license, and none of them requires you to choose a specialty at the point of licensure. Sex therapy sits on top of one of these credentials as an area of focused training and experience, in the same way that trauma therapy, couples therapy, or child therapy does.
This means the first half of the journey to becoming a sex therapist in California is simply the journey to becoming a licensed psychotherapist. Only after you hold a license, or are well along the supervised path toward one, does the specialized sex therapy training become the next step.
What Underlying License Do You Need?
Any of California's master's-level or doctoral mental health licenses can serve as the foundation for sex therapy practice. The most common routes are:
- Licensed Marriage and Family Therapist (LMFT), earned through a qualifying master's or doctoral degree in marriage and family therapy, 3,000 hours of supervised clinical experience, and two examinations.
- Licensed Clinical Social Worker (LCSW), earned through a Master of Social Work, supervised experience, and examination.
- Licensed Professional Clinical Counselor (LPCC), earned through a qualifying counseling master's, supervised experience, and examination.
- Licensed psychologist, earned through a doctoral degree, supervised experience, and examination, licensed by the California Board of Psychology.
For most people weighing these options, the relational and systemic orientation of the LMFT license fits sex therapy naturally, because so much of sex therapy is couples work. If you are still deciding among credentials, our guide on which therapy credential is right for you in California compares the paths, and our California MFT program directory lists the accredited options for the LMFT route. The underlying license is the foundation. The specialization is built on top of it.
What Is AASECT Certification and How Do You Earn It?
AASECT is the professional association that has set the recognized standard for sex therapy credentialing in the United States. It is a certifying body, not a government licensing board, so AASECT certification is a professional credential rather than a legal license. It signals that a clinician has completed a defined program of education, training, and supervised experience specific to sexuality. Earning the AASECT Certified Sex Therapist credential requires, at minimum:
- An existing state license to practice independently in a clinical field, plus an advanced clinical degree. A master's degree requires two years of post-degree clinical experience; a doctoral degree requires one year.
- At least 90 clock hours of human sexuality education covering AASECT's Core Knowledge Areas, which span topics from anatomy and sexual functioning to development, culture, orientation and gender identity, ethics, and research.
- A Sexual Attitude Reassessment, or SAR, of at least 14 clock hours. The SAR is a structured group experience focused on examining one's own attitudes, values, and reactions to human sexuality.
- At least 60 clock hours of sex therapy skills training in assessment, diagnosis, and intervention.
- At least 50 hours of supervision with an AASECT Certified Sex Therapist Supervisor, completed over at least 18 months, while providing at least 300 hours of direct clinical treatment to clients presenting with sexual concerns.
Certification is renewed every three years. The structure is worth noticing: alongside the classroom hours, AASECT requires 300 hours of real clinical work under expert supervision. The credential is built on doing the work, not only on studying it.
Is AASECT Certification Required to Practice Sex Therapy in California?
Legally, no. A California-licensed psychotherapist may treat sexual concerns that fall within their scope of practice and competence without holding AASECT certification. In practice, AASECT certification is the credential the field recognizes, the one clients and referral sources look for, and the clearest signal that a clinician has trained specifically in this area. Many clinicians who treat sexual concerns pursue it for exactly those reasons, and many who do not still seek out the same education, supervision, and skills training that certification requires. Whether or not you pursue the letters, the substance of the training is what makes someone competent to do this work.
Why Clinical Skill Rehearsal Matters for This Work
Sex therapy asks a clinician to do things that are difficult to do well: to talk about sex clearly and without flinching, to stay grounded when a client discloses shame or trauma, to keep a couple's charged conversation productive rather than letting it collapse, and to manage their own discomfort so it never becomes the client's problem. These are performance skills. Like any performance skill, they are built by doing them, getting feedback, and doing them again, not by reading about them or hearing them described in a lecture.
This is the gap that the AASECT requirements themselves point at when they pair classroom education with a SAR and 300 hours of supervised practice. Knowing the material is necessary but not sufficient. As Rousmaniere and Vaz observe, traditional training that emphasizes theory, case conceptualization, and observation "does not automatically translate into competent clinical performance" (Rousmaniere and Vaz, 2025). The training that closes that gap is the training that has you rehearsing the actual moments of the work.
A Closer Look at One Program: Sentio University
The following is offered as one concrete example of how a program can structure clinical training, not as a claim that it is the only good option. Anyone choosing a program should evaluate several.
Sentio University, a nonprofit graduate school in California with a hybrid model that serves students throughout the state, offers a Master of Arts in Marriage and Family Therapy built on deliberate practice. The program is described in peer-reviewed work as the first graduate psychotherapy program to thoroughly integrate deliberate practice, with roughly half of nearly every class session dedicated to active skills training rather than lecture (Rousmaniere and Vaz, 2025). You can read more on the Sentio MFT program overview.
Enrolled Sentio students can also pursue the Sex Therapy Track, which consists of two courses taught by Angela Jensen-Ramirez, LCSW, an AASECT Certified Sex Therapist. Like the rest of the program, the track is built on deliberate practice: students rehearse the skills of the work with feedback rather than only hearing them described. It is a way for students preparing for licensure to begin building comfort and skill with sexual concerns early, inside a program designed around practicing rather than passively studying.
Making Your Decision
The route to sex therapy in California is a two-part project. First, become a licensed psychotherapist through the LMFT, LCSW, LPCC, or psychologist path. Second, build specialized competence in sexuality through education, a SAR, skills training, and supervised clinical hours, whether or not you pursue formal AASECT certification. As you choose the graduate program and the specialty training that will get you there, ask one question about each of them: how much of the time is spent practicing the skills, and how much is spent listening to descriptions of them? The programs that will actually prepare you to sit with a client in sexual distress are the ones that have you rehearsing that moment, with feedback, before it counts. Ask every program you are seriously considering whether you can watch or attend a class session before enrolling. What you see in a classroom tells you more than any brochure.
Frequently Asked Questions
Is "sex therapist" a licensed profession in California?
No. California does not issue a sex therapist license. Sex therapy is a clinical specialization practiced by already-licensed mental health professionals, most commonly LMFTs, LCSWs, LPCCs, and licensed psychologists. You become licensed in one of those disciplines first, then build specialized training and experience in treating sexual concerns.
What license do I need to become a sex therapist in California?
Any of California's clinical mental health licenses can serve as the foundation: Licensed Marriage and Family Therapist (LMFT), Licensed Clinical Social Worker (LCSW), Licensed Professional Clinical Counselor (LPCC), or licensed psychologist. The LMFT path fits sex therapy naturally because much of sex therapy is couples work, but any of these licenses can support the specialization.
What is AASECT certification?
AASECT, the American Association of Sexuality Educators, Counselors and Therapists, is the professional body that sets the recognized standard for sex therapy credentialing in the United States. Its Certified Sex Therapist credential requires an existing clinical license, at least 90 hours of human sexuality education, a 14-hour Sexual Attitude Reassessment, at least 60 hours of sex therapy skills training, and at least 50 hours of supervision while completing 300 hours of direct clinical treatment of sexual concerns. It is a professional certification, not a state license.
How long does it take to become a sex therapist?
The first stage is full licensure, which typically means a master's degree plus about 3,000 hours of supervised experience and two examinations, on the order of several years. The specialized sex therapy training then adds its own education and a supervised experience period of at least 18 months. The total timeline depends on the license you pursue and how you sequence the specialty training.
Do sex therapists have physical contact with clients?
No. Sex therapy is talk therapy, conducted entirely through conversation. It involves no physical contact, no nudity, and no sexual activity between therapist and client. Professional ethics codes, including AASECT's, prohibit sexual contact with clients without exception.
Is AASECT certification required to practice sex therapy in California?
Not legally. A California-licensed psychotherapist may treat sexual concerns within their scope of practice and competence without AASECT certification. In practice, the certification is the credential the field recognizes and that clients and referral sources look for, so many clinicians pursue it or complete the same education and supervised training it requires.
Does Sentio offer training in sex therapy?
Yes. Enrolled Sentio students can pursue the Sex Therapy Track, which consists of two courses taught by Angela Jensen-Ramirez, LCSW, an AASECT Certified Sex Therapist. Like all Sentio training, the track is built on deliberate practice, with students rehearsing skills and receiving feedback rather than only attending lectures. Learn more on the Sex Therapy Track page.
References
American Association of Sexuality Educators, Counselors and Therapists. (2025). AASECT Requirements for Sex Therapist Certification. https://www.aasect.org/aasect-requirements-sex-therapist-certification
American Association of Sexuality Educators, Counselors and Therapists. (2025). Certification Overview. https://www.aasect.org/aasect-certification
California Board of Behavioral Sciences. (2024). Marriage and Family Therapist Licensing Handbook. https://www.bbs.ca.gov/pdf/publications/mft_ada.pdf
Rousmaniere, T., and Vaz, A. (2025, March). Sentio's clinic-to-classroom method: Bridging deliberate practice and clinical training. Psychotherapy Bulletin, 60(2), 79-84. https://societyforpsychotherapy.org/sentios-clinic-to-classroom-methodbridging-deliberate-practice-and-clinical-training/
