There could be a number of things that could cause lesion on the skin like that- the bunny definitely needs to see the vet as soon as they are open.  It could have been caused by a bite from another rabbit (do you have another rabbit?) any other type of puncture wound or even possibly an external parasite depending on your location/weather/etc (cuterebra).

It is impossible to tell the amount of damage from a photo- the wounds needs to be flushed and explored by a vet to determine the best course of treatment- sutures, sutures/drain or if risk of infection is too high- healing by second intention- leaving the wound open to granulate in and heal.  How much damage the underlying tissue has sustained will need to be evaluated.

The bunny will most likely be prescribed antibiotics and pain meds along with the medical treatment- so there is really nothing you can do at home other than encourage the bunny to eat and drink until you get the rabbit to the vet ASAP.

If this is an abscess it would have resulted from an injury that happened weeks ago- and has finally gotten to the point where it has ruptured thru the skin.  The initial injury could have been a single puncture- resulting in 2 draining wounds over the course of x amounts of weeks of festering under the skin- or the initial wound could have been 2 puncture wounds.  Puncture wounds have a high rate of abscessing because they trap bacteria in, while healing over at the surface of the skin.

Please keep us updated and let us know what the vet says!

Oh OUCH! That must have been a nasty thing to discover! Healing vibes for your bunny.

Oh no! Please keep us posted on what the vet says!

Vibes for bunny!

Yes, please let us know what your vet says. Glad you are taking him in and healing vibes to your bunny.

Hope your bunny is feeling better soon!! Glad you discovered it before it got worse and are taking action by taking him to the vet ASAP!! Keep us updated! {{{{healing vibes}}}

Ouch!!! Please let usknow how it goes at the vet office!!

Yikes, I think I would have fainted finding that. Please let us know how he’s doing.
(I have to ask, what part of the rabbit are we looking at? I think I see some ears, is it on his back?)

healing thoughts for you

What’s your bun’s name?

Kathy

That’s good you got him in What kind of antibiotics did he give you? {{Healing vibes}}

Compress with hot water? That sounds painful. Were you also given pain meds?

Actually compressing with hot water sounds soothing to me. When I was young I used to get some weird type abscess thing on my tailbone which hurt like the darn dickens and I had to take warm baths to help. So I guess this is the same idea.

Yes, what about any pain meds? Does he seem in pain?

Speedy healing vibes to Speedy.

Good thing you noticed this b4 it got any worse.   Things like that sometimes are really hard to see or find at first. 

Healing vibes for sweet bunny

Jers-maybe it’s a language US/Aussie thing; A hot compress is usually just a warm wet towel applied to the area for a time No compressing really and more warm then hot

Just off hand it sounded painful. Heat on an already inflammed area – but I’ll take everyones word that it’s actually comforting (((More healing vibes for this bunny)))

The heat would allow any puss and icky stuff to exit the wound and clean it out a bit, so its a good thing to do that Heat also relaxes usually, so its not that bad.

hehhe jers Sorry thought it might have been an NA term lol

LOVE heat on any sore spot myself