A little over two weeks ago, I noticed some wrist pain on the thumb side after squatting; I was using a rack that had the pegs a little too high and had to raise my wrists a little to put the bar back, then noticed afterward when I tried to deadlift that it was hurting my left wrist.
Went to my doctor yesterday and the initial diagnosis is tenosynovitis (still waiting on the x-ray just to rule out a scaphoid fracture, but he was pretty confident).
I tried to train through it at first, but stopped once I realized it wasn’t getting better. Doesn’t seem to be getting much better with rest and a brace (which I’ve been wearing sometimes during the day and at night since Monday).
Pain happens on most exercises that aren’t machine leg work, so I haven’t been deadlifting, benching, squatting (low bar position aggravates it), etc. Bending the wrist up/down/to the side hurts, as does gripping hard (it’s sometimes tough for me to unscrew my shaker bottle without pain, for instance) and sometimes opening a door.
Typical recommendation is tolerable loading to the area with provocative movements and then isolation to the area with an eccentric focus on movements.
I typically recommend doing these two exercises 1 - 2 x / week in the beginning stages.