Q. As far as I know women are permitted to trim the hairs of their wigs during Sefira days. Does the same apply to men that wear a wig?

A. On question 101 regarding trimming and fixing a wig during the 3 weeks, we wrote:

“Nitei Gavriel (Bein Hametzorim 21,5) permits trimming and fixing a wig even when one is wearing it, until the beginning of the nine days.
(However, in his Bar Mitzva Seifer 22,21, he further permits the above for the mother of the Bar Mitzva bochur, before the week of Tisha B’av itself). Shevet Hakehosee (O.C. 150 ) seems to allow it at all times.
Horav Shlomo Miller’s Shlit”a opinion is that it is permitted before the nine days begin.”

Horav Shlomo Miller’s Shlit’a opinion is that if a man is permitted to wear that wig as is common in our days, the same would apply.

Rabbi A. Bartfeld as revised by Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a.