What role do androgens play in hair growth patterns?

Androgens play a significant role in determining hair growth patterns, particularly in relation to sexual differentiation. They are a group of hormones, including testosterone, that can influence the growth of hair in various areas of the body. Specifically, androgens contribute to the development of what is known as terminal hair, which is typically thicker and darker than vellus hair (fine, light hair).

In men and women, androgens lead to differences in hair growth in specific areas—such as facial hair in men and pubic and underarm hair in both sexes. This hormonal influence is crucial in sexual development and secondary sexual characteristics, explaining the variations in hair growth patterns observed between males and females.

Understanding the role of androgens helps in comprehending conditions such as hirsutism, where excessive hair is developed due to imbalanced androgen levels. This knowledge is essential for practitioners aiming to provide effective treatments in electrology and other related fields.