Question

for an adult or teenage guys we see hair on hands if u notice we can only see one ie back but not front why?

Answer 1

Typically, people don't grown hair on the soles of our feet or palms of our hands. This is because this skin on these parts lacks hair follicles, and does not therefore produce hair. This is also the true for lips!


The main functional reason is we need to be able to grip things with our hands (and feet, which are also hairless), and hair would interfere with that. Physiologically, the epidermis in these parts of the body is very thick and highly keratinized, and when combined with the thick underlaying layer of dermis, this results in skin that does not support the growth and maturation of hair follicles.