Which type of hair typically appears during puberty and is thicker?

During puberty, individuals experience a significant change in their body's hair characteristics, particularly the transition from finer, lighter hair to thicker, darker hair types. Terminal hair is recognized as the type of hair that becomes prominent during this stage of development.

This hair type is generally longer, coarser, and thicker than vellus hair, which is the fine, soft hair that covers much of the body before puberty. Terminal hair typically develops in areas such as the armpits and pubic region, as well as on the face in males, influenced by hormonal changes.

Catagen hair refers to a transitional phase in the hair growth cycle and does not specifically pertain to the hair types associated with puberty. Lanugo hair is the fine hair that covers a fetus and is usually shed before birth; it does not appear during puberty.

Thus, the correct response highlights the distinct changes in hair texture and density that are characteristic of terminal hair, making it the type of hair that represents the physical changes during puberty.