Ask your gynecologist or urologist to recommend someone he or she feels is competent
and trustworthy.
Ask to see the therapist's credentials. The therapist should be certified by the American
Association of Sex Educators, Counselors and Therapists (AASECT), which requires
extensive training.
Be sure that the therapist has expertise in the problem you're experiencing. Some therapists
specialize in treating people with particular problems, like low sexual desire, impotence,
incest, or sexual abuse.
If you don't feel a therapist is helping you, don't hesitate to discontinue therapy and consult
someone else.

Be aware of unethical practices. A sex therapist should:

Never show shock or surprise with the client's problem or the subject matter being discussed.
Never give a physical exam to a client unless the therapist is also a physician. Sex therapists
who don't have a medical degree are not trained to diagnose and treat physical problems.
Never ask their clients to engage in any form of sex with the therapist or in the therapist's
presence.