Puberty is the time when this kind of hair growth typically starts, but it can vary widely from person to person.
Factors that influence the timing include:
* Genetics: Family history plays a big role.
* Overall health: Good nutrition and health contribute to normal development.
* Ethnicity: Some ethnic groups experience puberty earlier or later than others.
It's important to remember:
* Every body is different: There's no "normal" time frame.
* Talking to a parent or doctor: If you're concerned about your pubertal development, it's best to talk to a trusted adult.
This is a natural part of growing up, and there's no need to be embarrassed or worried.