Q: Why do women grow sparse hairs around their nipples?
Dr. Dave says: Body hair in general is something that has evolved in people over the course of time, so the primary reason to have it—and to some degree how much—is genetic. It’s perfectly normal for some women to have some hair around their areolas (not the nipple itself). The onset of growth, or changes in growth in this hair, is usually caused by hormonal changes. So if you are at a period in your life where your hormone levels are changing, this may be the reason that you have experienced nipple hair. For example, it is very common for young girls to first notice hair in this region when they begin menstruation. Women who are pregnant also may notice nipple hair for the first time, and women going through menopause may notice either the beginning or end the growth of nipple hair. Similarly, a new birth control pill can either trigger or increase amounts of nipple hair.
Keep in mind that most women will go through at least one hormonal change that will cause them to experience nipple hair at some point in their life. However, if the hair is actually on as opposed to around the nipple, or if there is lots of it and it seems to be associated with excess hair on other parts (face, chest, stomach) you should speak with your doctor.