Psychosexual disorder is a sexual problem that is psychological, rather than physiological in origin. "Psychosexual disorder" was a term used in Freudian psychology. The term of psychosexual disorder used by the TAF for homosexuality as a reason to ban the LGBT people from military service.
The sexual problems that are psychological in origin, rather than physiological, are called psychosexual disorders. It may arise due to guilty conscience, stress, anxiety, nervousness, worry, fear, depression, physical or emotional trauma, abuse, rape and so on.