In men:
- Inability to achieve an erection or maintain and erection suitable for intercourse (erectile dysfunction)
- Delayed or absence of ejaculation despite adequate sexual stimulation
- Inability to control the timing of ejaculation (premature or retarded ejaculation)
In women:
- Inability to relax the vaginal muscles enough to allow intercourse
- Inadequate vaginal lubrication before and during intercourse
- Inability to achieve orgasm
In men and women:
- Lack of interest in or desire for sex
- Inability to become aroused
- Pain with intercourse
