what causes a lack of facial hair?

Answer 1

puberty, gender or a razor

Answer 2

First, a little physiology: some adolescents experience delayed puberty; that is, they reach the end of the age range in which puberty typically begins (about ages 7 - 13 for girls and 9 - 15 for boys) without having any of the physical changes that typically come at this time. In most cases, these teens take a little longer to mature (what people often call "late bloomers") and will catch up later. Most of delayed puberty is just a case of each body having its own sense of timing. However, medical issues can delay puberty, including:

chronic medical conditions, such as diabetes, cystic fibrosis, asthma
malnourishment or eating disorders
thyroid or pituitary gland or disorders
hormone imbalances
chromosomal disorders, such as Klinefelter's Syndrome or Turner Syndrome
The development and amount of facial hair is partly determined by genetics, endocrinology, and ethnicity — some folks have heavy beards, others have sparse ones; there are guys who start shaving in middle school, while others are razor-free into their thirties. Time may thicken the fuzz Mother Nature put on your peach, but there's little you can do to speed the process.

If you experienced some physical changes during puberty (e.g., a growth spurt, development of body and pubic hair, genital enlargement, deepening voice, etc.), it's unlikely that your lack of facial hair is caused by an underlying medical condition. If you explain your concerns to your health care provider, s/he will be able to rule out health problems that could be responsible.

Unfortunately, some people are unwilling to give proper credit and respect to someone who is younger (or older, or of a different race, gender, ethnicity, religion, sexual orientation, weight, physical ability, social or economic class, etc., etc.). Judging someone based on external factors rather than ability is discrimination, and when it happens in the workplace and/or affects hiring and promotion, it might be downright illegal. In your case (when people are judged on their actual or perceived age), it's ageism — either younger or older.

Answer 3

Either an excess of chin and forehead, or else an unduly diligent shaving habit!

I've never understood the current obsession with either being clean shaven, or with having a minute amount of hair spread around the chin! I've had a good beard and moustache since the 70s and I glory in it!

Answer 4

im not sure if this is the cause of it but hair growth is influenced my hormone level. High testosterone in particular has an inffluence on hair growth...

Answer 5

genetics.. light colored races have more hair than darker colored races.. some say bcause light colored migrited to cooler climates . also family history.. i seen a mother that had mor gotee then the father

Answer 6

Friction.

Answer 7

Low testosterone levels I guess.

Answer 8

Could be age or genetics

Answer 9

Age and/or genetics

Answer 10

using a shaver.