Pubic hair grooming practices in KwaZulu-Natal, South Africa: prevalence, side effects and association with sexually transmitted infections.

Pubic hair grooming is common in many countries, but little is known about this practice in Africa. Grooming has been positively associated with self-reported sexually transmitted infections (STIs). This study aimed to investigate the prevalence and safety of pubic hair grooming in two South African settings. In KwaZulu-Natal province, 1218 women participating in the Evidence for Contraceptive Options and HIV Outcomes Trial completed an interviewer-administered questionnaire on pubic hair grooming practices, and were tested for Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and herpes simplex virus type 2 (HSV-2). Pubic hair removal was reported by 705 (58.2%) of women. Common areas for grooming were the pubis (n = 616, 99.4%), vagina/perineum (n = 529, 85.3%) and inner thigh (n = 255, 41.1%). Half (n= 361, 51.4%) removed some or all of their pubic hair at least monthly and 59 (8.4%) once a week or more often. Common side effects reported included itching (n = 439, 77.1%) and pimples and blisters (n = 249, 43.9%). A quarter (n = 173, 24.5%) of groomers had a positive result for either or both of CT and NG compared to a fifth (n = 98, 19.4%) of non-groomers (p-value < 0.033). There was no difference between the groups for HSV-2. After adjusting for age and having more than one sex partner, groomers were significantly more likely to have CT or NG than non-groomers (OR: 1.31; 95% CI: 1.19-1.45). Similarly, those who experienced hair removal-related complications had 1.26 times the odds of testing positive for CT or NG (95% CI: 1.03-1.54). The practice of pubic hair removal is common and reporting of side effects is high in this population. These injuries could put women at a higher risk of STIs.