Sexology is the scientific study of human sexuality, including human sexual interests, behaviors and functions.

Sexologists apply tools from several academic fields, such as biology, medicine, psychology, epidemiology, sociology, and criminology. Topics of study include sexual development (puberty), sexual orientation, gender identity, sexual relationships, sexual activities, paraphernalia, atypical sexual interests. It also includes the study of sexuality across the lifespan, including child sexuality, puberty, adolescent sexuality, and sexuality among the elderly. Sexology also spans sexuality among the mentally and/or physically disabled. The sexological study of sexual dysfunctions and disorders, including erectile dysfunction, anorgasmia…etc.                             

  • Asexuality is the lack of sexual attraction to others or low or absent interest in or desire for sexual activity. It may be considered lack of sexual orientation or one of the variations there of, alongside heterosexuality, homosexuality and bisexuality.
  • Bisexuality –is romantic attraction or sexual behavior towards both males and females or romantic sexual attraction to peoples of any sex or gender identity, this latter aspect is sometimes alternatively termed Pan sexuality. 
  • Heterosexuality– Romantic attraction towards opposite sex.
  • Homosexuality– Romantic attraction same sex.
  • Androphilia attraction towards man.
  • Gynephilia Attraction toward women.
  • Gray Sexuality is the spectrum between asexuality to sexuality.
  • Non Heterosexuals are not interested in opposite sex. 
  • Pan sexuality or omnisexuality is the romantic emotional attraction towards people regardless of their sex may be female, may be man romantic sexual attraction. 
  • Polysexuality (Queer) -is an umbrella term for sexual and gender minorities.
  • Lesbian-Homosexual women.
  • Gay –Homosexual male.
  • Bisexuality Attraction both Male & Female.
  • Transgender-people have a gender identity or gender expression that differs from their assigned sex. Transgender peoples sometimes called Transsexual if they desire medical assistance to transitions from one sex to another.