Our first rabbit was a disabled Flemish Giant who eventually became incontinent. After her death, I wrote and saved the following bathing instructions for our local rabbit rescue.
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If your rabbit is incontinent for any reason, bathing becomes a necessity. If you don’t have a hand-held shower, we highly recommend one! Our disabled rabbit was cleaned twice per week, once only with water (a rinse) and once with water and soap (a full bath). A rinse may be performed by one person, but a full bath takes two, at least with a Flemish Giant or other large breed.
Rinse
For a rabbit rinse, line the tub with a soft bathmat and place Rabbit on his/her side that is least affected by urine and fecal accumulation.
Rinse Rabbit with a warm (but not too hot) spray until the water runs relatively clear. Immediately afterward, wrap Rabbit in a towel and hold
(or place on a bed protected by another towel). After a few minutes, change the first (very wet) towel for a dry one. On top of the new towel,
cover Rabbit with a blanket. If on a bed, lie down next to Rabbit to help keep him/her warm.
**Since a hair dryer on low is neither very effective nor very comfortable for Rabbit, we found that towel-drying and keeping Rabbit wrapped worked
best.
Full Bath
1.) Newer baby bathtubs have backrests, and therefore are not suitable for bathing bunnies. I initially used a new dishpan (for which our disabled rabbit was really too big); later we purchased a large plastic storage container. Since rabbit shampoo is difficult to find, we used puppy shampoo.
2.) For a full bath, first rinse Rabbit as described above to remove as much urine and fecal matter as possible. Fill the bunny bathtub with
enough water to cover Rabbit’s back halfway, but do NOT add puppy shampoo until the tub is filled. After adding puppy shampoo, stir gently, then
add Rabbit: when it comes to suds, less is more, especially since Rabbit will tend to kick his/her legs in the water. After she settled down,
Frida usually enjoyed relaxing in the tub. When the water level is low enough and Rabbit is relaxed, use the hand-held shower to create a
whirlpool effect (remember to watch the water level!).
3.) When Rabbit is as clean as posssible, it’s time to rinse. This definitely takes two, one to hold Rabbit and one to rinse. Use the
hand-held shower to rinse Rabbit’s back, sides, derriere, and underside.
4.) After Rabbit is rinsed, follow the “rinse” instructions above for drying.
5.) In our disabled rabbit’s case, a clean rabbit was not an especially happy rabbit until she was relatively dry and grooming herself.