What Causes A Rabbit Not Being Able To Move Back Legs?

I just had to have my bunny put to sleep last night...I am a wreck today.  But I'm so sorry to tell you that she had the same symptoms, she kicked too hard when someone picked her up incorrectly (a veterinary technician actually...never trust ANYONE to handle your baby unless you KNOW they are educated on bunnies)...Anyway, she stopped using her back legs and at a COMPETENT vet clinic, they said she had a spinal injury and those are never reversible they said...at least they had never seen it.  I hope your news is better.... :( At least the paralysis, I HOPE, means it's not TOO painful... Sorry for your little friend's situation.

There are many possibilities about weakness of the back legs in the rabbits. Some of these are serious and should be investigated by the vet. Common causes of weak hind legs in rabbits are

1. Arthritis
2. Ulcerated feet
3. Trauma
4. Cancer
5. Bacterial infection
6. Stroke
7. Toxins (medicines, chemicals )
8. Disc problems
9. Spinal problems
10. Neurological diseases

So, you should take your rabbit to vet for differential diagnosis and treatment.