Cats do not seem to get this problem as often as dogs ( I work as a pet groomer and express glands practically daily). Expressing the anal glands is stinky and some animals may prefer not to have it done, but if the glands are not infected then I'd just go and have it done routinely. (Maybe you could find a groomer that does cats and have it done by them). I would only have the operation if they were constantly getting infected. I did have a cat once who tended to empty his glands on me occasionally, so I tried to keep them empty. It was a small price to pay for a loving companion.