What is the cause of risen bumps?
somthing i really do not know but thank you for asking
Genital warts can somtimes cause itchless bumps. There are a million other bumps you can get down there however. The best thing to do would be to see a doctor while the bumps are still present. A good doctor should be able to tell what they are by a visual inspection of them. You can also have hair follicles. Have you shaved down there lately? I used to get bumps all the time from shaving.