No. You do not need to make any changes to how you normally groom. In fact, it is recommended that you avoid shaving pubic hair pre-surgery since any nicks in the skin from the razor can make you more vulnerable to infection. Gynecologists see vulvas of all shapes, sizes and hairiness every day-- so you do not need worry!
Visit www.iapmd.org/surgery for lots of evidence based information and resources for those considering, going through or recovering from surgery for PMDD/PME.