Is it necessary to comb pubic hair as a part of chafifa? If one visually doesn’t see any knots, is that enough? If one is required to comb, does it have to be every part of the hair or can some parts which are “stuck” (with water) to skin be skipped if there are clearly no knots? Thank you very much
The hairs do not need to be combed with a comb, however they should be separated from each other with one’s fingers, by running your fingers thru the hair. The issue is not just knots in the hair. Hairs should not be stuck to each other or to the skin, as that would prevent the mikva waters from touching the hairs.
Please see he following post https://dinonline.org/2022/03/23/combing-before-tevila-follow-up-question/
All the best
Shulchan Aruch Y:D 199:1, Shach ibid:1