Note: I’ve edited your post to show the image, for some reason it wasn’t showing up

Hmmm, that is a lot of hair loss for a molt. The skin does look healthy underneath though, so it’s perplexing. I know rabbits can look pretty rough when molting, but I’ve never personally seen that much completely bare skin during a molt. Hopefully some others will chime in if they’ve seen molting look this extreme.

Given the large area, I think a vet visit would be good to rule out fungal, bacterial, and parasite infections.

Looking at medirabbit, the closest thing I can find is “Bilateral symmetric alopecia”, which occurred in an unaltered male, which they deemed to be over grooming out of frustration. Other cases are thought to be linked to hormonal imbalance, but not much is known about it. Here’s the article: http://www.medirabbit.com/EN/Skin_diseases/Hormon/Bilateral.htm

Your boy’s pattern doesn’t match exactly, but if your boy isn’t neutered yet that would be my guess (if other infections are ruled out).

Just looking at the picture, it reminds me of Wooly’s bald patches when he self-mutilates. I would still have a vet take a look to rule out any infection or parasite. If it does turn out to be self-inflicted, then there are things you can do to help with that.

That’s great! Thanks for the update.

Thanks for the update!

Awesome.