Summarize this article:

It can be hard to work out if the source of an odor is coming from your rabbit or its enclosure if the two are nearby. Carefully pick your rabbit up and carry it away to an area without any strong odors. Give your rabbit a good sniff to check whether it's the source of the bad smell. Your rabbit’s fur should be mostly odorless, apart from a slight animal scent. with cornstarch and a comb if it’s dirty. While you should avoid bathing a rabbit as much as possible, it’s likely that it’ll still need occasional cleaning. Sprinkle some cornstarch over any dirty areas of your rabbit's fur to draw out any moisture, before using a fur comb to work out any mud or dirt stuck.  You should never use a powder that contains talc to clean your rabbit, as this can be hurtful to your pet's respiratory system and may even be carcinogenic. Even if your rabbit is completely covered in mud, this dry spot clean will be much safer than getting your rabbit wet. Apply cornstarch and comb out the dirt in small sections until your rabbit is completely clean. and trim the rabbit’s fur if waste is getting stuck. If your rabbit is getting pellets or urine stuck in its fur, use a grooming comb to brush away any waste before wiping the rabbit down with a very slightly damp cloth. Use a small pair of scissors to trim down your rabbit’s fur to prevent waste from getting stuck in it.  Take extreme care if you bathe your rabbit. It cannot hold its head up above the water, so it may drown easily if you do not watch it closely. If this happens often, it may be a sign that something else is wrong with your rabbit. Take it to a vet to make sure that it’s OK. The scent glands around your rabbit’s anus may begin to build up with excretion after a while, which can be another source of a bad smell. Dip a cotton swab or ball into warm water and swab the area around their anus to remove all traces of excretion.  Your rabbit might get jumpy or uncomfortable while you clean this area, so it may be easier to have someone else hold your rabbit while you clean it as quickly as possible. If the fur near your rabbit’s anus becomes wet while you clean their glands, use a blow dryer on its lowest setting to dry the fur. If your rabbit's scent glands need to be cleaned, they'll be easily noticeable due to a brown build-up around the rabbit's anus. Check around your rabbit's hindquarters and anus for any brown color that indicates that the glands need cleaning. Your rabbit's scent glands should be cleaned roughly once a month. Rabbits are very sensitive animals and do not easily adjust to being in water. Putting your rabbit into a water bath may make it very stressed, making your rabbit unhappy and possibly even increasing its chances of getting sick. Never bathe your rabbit in water, unless your vet specifically instructs you do to so. Rabbit fur will also take a long time to dry. Avoid getting your rabbit wet as much as possible. As well as having numerous health benefits and decreasing the risk of some serious illnesses in your rabbit, getting your rabbit spayed or neutered can make them less territorial and aggressive. This may make your rabbit urinate in fewer places, and can remove the musky smell from a male rabbit. Get your rabbit desexed once it is 6 months old and sexually mature.  The surgery to have your rabbit desexed is very safe with an experienced vet and will lead to your rabbit having a longer life. Male rabbits will need to be neutered, whereas female rabbits will need to be spayed. If nothing else is working and your rabbit still smells, it’s likely a sign that they are ill. Take your rabbit to a veterinarian experienced in caring for rabbits as soon as possible to get it diagnosed and treated. A bad smelling rabbit could be a sign of an ear infection, an internal parasite, or even an open wound. All of these are very difficult to treat independently. Always take your rabbit to the vet immediately if you think something might be wrong.

Summary:
Smell your rabbit away from their enclosure. Clean your rabbit Wipe down Clean your rabbit’s scent glands. Avoid bathing your rabbit in water. Get your rabbit desexed once it’s 6 months old to reduce its musky smell. Take your rabbit to the vet if they still smell.