Many (I would assume most?) women shave most all parts of their body before going to the mikveh (arm pits, legs, many take care of the hairs on their face to look nicer or to remove them altogether.) ...
In regards to the dinim of chatzitza by the tevillah of a Niddah the SA (Rema) in YD Siman 198 Sif 6 speaks about an interesting situation where a woman's hair was tied together by a Shin-Daled ...
What are the halachic issues involved in hair dyeing for women? Most importantly, does hair dye constitute a chatzitza for mikvah? Also: are there any communities that forbid hair dyeing altogether? ...