A body plan is the type of body parts that someone has or does not have, such as a penis, testicles, a vulva, a developed clitoris and breasts, similar to transsexuality in these cases, altersexuals can get sex reassignment surgery, also popularly known as change of sex, such as (vulvo)vaginoplasty, phalloplasty, methoidioplasty or (peno)scrotoplasty. However altersexo is a type category of any body plane outside the conventional standard, including those that are fantastic or imaginary and, or physiologically not possible in real life or in the homo sapiens species. 