Common Health ProblemsChild Health Warts on skin: What to do? by Dr. Shubhada Bichu December 5, 2020 by Dr. Shubhada Bichu December 5, 2020 Warts are small brown or grey rough lumps or bumps on skin caused by Human Papilloma Viruses (HPV) which are of many types. 0 FacebookTwitterPinterestLinkedinWhatsappTelegramEmail