Why does the human body grow hair? Is this a good thing or a bad thing?

Human body hair has been reduced a lot after hundreds of millions of years of evolution, but it still grows some hair.

Hair doesn't matter whether it is good or bad, because it is normal.

However, if women have more hair because of endocrine disorders, that is a bad thing. Endocrine disorders lead to more hair, but endocrine disorders can also lead to menstrual disorders, poor skin, decreased sexual desire, infertility and so on. , will reduce the quality of life. Many endocrine disorders are caused by polycystic ovary syndrome.