The causes of graying pubic hair are not very different from the causes of graying hair, the common causes include: 1, and genetic factors have a certain relationship; 2, long-term bad habits, such as often stay up late, sleep deprivation, excessive paranoia, picky eating or dieting, resulting in unbalanced intake of various nutrients; 3, excessive mental work or stress may lead to graying pubic hair; 4, as age increases And a natural aging phenomenon. When the pubic hair turns white, there is no good method or medicine to turn the white pubic hair to black, but this phenomenon generally does not cause obvious adverse effects on health and sexual life ability. You can pay attention to a good diet and lifestyle habits to slow down the development of this phenomenon.