we are 7 billion humans in the planet. We have always known that gender is determined by a certain pair of chromosomes (XY). XX is female and XY is male, but in reality these are not the only valid configurations.
An extensive review of the medical literature from 1955 to 1998 provided estimates for the frequency of sex variations. they found that
Persons who did not have XX and also XY were 1 in 1,666 births
Persons who had XXY (Klinefelter) were 1 in 1,000 births
Persons who had
Androgen insensitivity syndrome are 1 in 13,000 births
Persons who had Partial androgen insensitivity syndrome were 1 in 130,000 births
Persons who had
Classical congenital adrenal hyperplasia were 1 in 13,000 births
Persons who had Late onset adrenal hyperplasia were 1 in 66 individuals
Persons who had
Vaginal agenesis were 1 in 6,000 births
Persons who had
Ovotestes were 1 in 83,000 births
Persons who had Idiopathic (no discernable medical cause) were 1 in 110,000 births
Persons who had Complete gonadal dysgenesis were 1 in 150,000 births
Persons who had Hypospadias (urethral opening in perineum or along penile shaft) were 1 in 2,000 births
Persons who had Hypospadias (urethral opening between corona and tip of glans penis) were 1 in 770 births
The total number of people whose bodies differ from standard male or female were 1 in 100 births
The total number of people receiving surgery to “normalize” genital appearance are 1 or two in 1,000 births
Remember we are 7 billion of us.... while the majority fall within the "normal" spectrum - there is a sizable number who do not have that configuration.
All Mushrooms are edible! Some Mushroom are only edible ONCE!