Check the cord and your bun(especially around the mouth). If there are no signs of scorch marks on the cord, and no sign of injury or swelling around your rabbits mouth and your bun isn't acting abnormally, there's a good chance it's ok. But as with any doubts or concerns with health issues or injuries, it's always best to consult with your knowledgeable rabbit vet. I can't say whether or not your rabbit was injured. You would need a detailed vet exam to determine that for sure.
If you witness your rabbit chewing on a live cord, do not reach out to pull the cord out of its mouth, or you risk electrocution as well. But even electric cords that are not live hold risk for injury. Learn how to recognize and treat electric cord injury in rabbits, here.
www.petmd.com
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A world-wide list of local rabbit vets near me maintained by House Rabbit Society so that people can find the closest rabbit vet near you.
rabbit.org
There is always the potential from a frayed or chewed charging cord to result in serious electrical burns. But it doesn't seem to happen as easily with the USB cords, as chewing through owners charging cords seems to be a favorite past time for rabbits. But the potential risk is certainly there, so it's always adviseable to be very careful about cord protection and preventing your rabbits access to live electrical cords. Particularly normal electrical cords that are not USB cables. Now those I have read accounts of burn injuries from chewed cords, as well as being a fire hazard(a past RO member had a fire start from a chewed cord). So it's very important to properly bunny proof any area your rabbit will have access to, paying particular attention to protecting electrical cords from bunny teeth.
wabbitwiki.com
