Posted By LongEaredLions on 6/13/2014 1:10 AM
Tufts usually do just come out during heavy molts. Usually skin doesn’t come with the fur, but if you don’t see any signs of mites or parasites, I would say he is fine unless this continues past his usual molting time.
Posted By Eepster on 6/13/2014 3:07 AM
Porky gets small flakes with tufts frequently, it is different from when he molts. I’ve had other rabbits, so I was familiar with molting already, and the tufts with flakes is different.
Molting is just lots, and lots, and lots of loose fur with out flakes that comes out creating a visible pattern. It takes places over several days, but then it is done and over.
The tufts and flakes are an ongoing thing. They are also mostly around his rump area, They are small and don’t create the mottled appearance of a molt.
I have taken Porky to the vet specifically over this, but the vet declared him healthy. None of my other bunnies had this. Porky has had it for years and it hasn’t harmed his health at all. It can be a sign of a health problem though, so just b/c it wasn’t for Porky I would still take any other rabbit in to the vet just to make sure it wasn’t health related.
I suspect with Porky it’s just dry skin. I had a cat prone to dry skin once, and I’d moisturize her skin with butter, but you can’t do that to a bunny since they are obligate herbivores instead of carnivores like cats.
Well I took him to the vet, after I discovered his shedding was becoming worse, and ran across a bald patch on his bum. 
He sadly does have mites, and has been treated with an injection from my vet. He follows up for a second injection on July 1st. And right now I have a not happy bunny, and a super duper beyond clean apartment. The vet gave me a few cleaning supply items that I can use on my carpet, on my bed, his cage, on my sheets and whatnot, that will kill any bit of mites, and not harm either me or the bun.
He is really grumpy cause I had to give him a good wipe down, and stick him in the bathroom while I cleaned. 