Pubic hair begins to grow once you reach a certain stage in puberty. This hair grows on the outer skin of your genital area including on the scrotum sac, at the base of the penis, and the outside labia lips. This hair first starts growing in a small area then spreads over a larger area towards your lower abdomen and upper inner legs. It grows because of the increase in the release of certain hormones in your body. It may seem weird yet our ancestors have had pubic hair growth for centuries. To learn more about your genitals, visit BLOOM’s Healthy Body page.