What Dictates How Body Hair Grows?

Hello, ive been searching around for an answer or explanation about body hair and what drives it to grow with no luck, i stumbled upon this site and thought it would be good to ask.

Im a male currently 21, and ive noticed a gradual increase in body hair, the growth is dark, coarse, and fairly thick. i’ve talked to my local doctor about this and done some tests still waiting for results, but he assured me this is “normal” however i beg to differ, the hair is really an annoyance and making social interactions abit awkward.

so my question is, how does body hair grow? and what hormones dictate the length and type (vellus / terminal) of hair? ive read that DHT might have a contribution but im not entirely sure. i do know however that my Test levels are on the lower side of the scale, which makes me think that my body is converting too much to DHT.

kind regards.

In general, DHT is responsible for some of the secondary male characteristics, such as body hair. DHT plus your genetic predisposition may cause changes in your body hair. Likewise, DHT plus your genetic predisposition can also affect male pattern hair loss. The key is genetics.

As men mature from their puberty years into their early twenties, many changes in their bodies occur. In men who are in their 60’s and older, they also develop ear hair and nose hair and some of them can lose body hair in their senior years.