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.