My wife has arthritis and can not fully close her hand around her P238. I want to order one for my wife but noticed that they are different than the one I added to my LCPii and P365. Can anyone tell me if the Hogue grip does increase the diameter of the grip and does it reduce the perceived recoil?

Order one from Amazon and have her try it. If it works, great. If not send it back for a refund.
Easy peasy.

Jim

If you are referring to the Hogue rubber grip, yes it does slightly increase the width of the grip and it's quite comfortable in the hand. Everyone perceives recoil differently but in my opinion it does reduce felt recoil.