What can cause sore hocks in rabbits?

Sore hocks in rabbits primarily occur due to prolonged pressure and friction on hard surfaces. When rabbits are housed or spend a significant amount of time on hard flooring, the pads on their feet can become irritated, leading to sores. This condition is particularly common in breeds with less fur on their hocks or those that don't have sufficient bedding to cushion their feet.

The other options present scenarios that could impact a rabbit's health but do not directly contribute to the development of sore hocks in the same way. For example, while overgrown fur can affect a rabbit’s overall grooming and hygiene, it does not specifically create the same friction or pressure that hard surfaces do. Similarly, excessive exercise may lead to other health concerns or injuries, but it is not a direct cause of sore hocks. Finally, inadequate water is essential for overall health and hydration but does not relate to the specific issue of sore hocks, which is primarily mechanical in nature.