Hi! 29 yo male, question about my hair and potential thyroid issue. I ve had very low hair density ever since I can remember. I remember my grandfather telling me I looked bald when I was 10 yo! It has always bothered me but since my sister and mother also had the same problem I never looked into it too much. Note that my brother s hair is relatively normal, perhaps a little bit low density. I can easily see my scalp through my hair and seems to be a little extra thin new my top left crown area. Not sure if my sides are any better than the rest of my head, but if I had to guess I would say the sides are a bit better. For the past few years i have began to suspect I may also have hypothyroidism. I am extremely sensitive to the cold, I sweat a lot and easily, I get tried throughout the day, I have poor memory, I think my skin seems thin, and my libido is pretty low. I also have Keratosis Paliaris which some people think could be tied to hypothyroidism. I have done some blood work and my GP refuses to send me to a endo based on them, but I know mild hypothyroidism may not show clinically but rather should be diagnosed symptomaticly. My question is if you think my low hair density is due to a life-long case of thyroid hormone imbalance or if I was simply born with less hair. I ll add that I have a rather large head and I read that that might spread out my follicles resulting in lower density. It is bothering me a bit more now because my hair line is also starting to recede a bit. Please let me know!