some of you rabbits have the same thing. It might be because when you pick the rabbit up you might be pulling some fur out so try to hold the skin and less the fur. i don’t think it’s something to worry about. If some thing else happens please share.
1. small area of moult that just got missed - if this, it will just grow back within in about 2 weeks
2. fur mites - the area will get bigger, you'll see more flakey skin and dirt from the mites.