On the whole, Cornish Rex cats do not require high maintenance, but there are some things to remember.
Feeding. Cornish Rexes have good appetite and may become overweight if their food isn’t rationed. Of course, every cat is different, some can be trusted with eating only as much as they need and then leaving that bowl alone, but some can’t. It is always good to monitor the cat’s food intake.
Grooming. Because of their very short fur Cornish Rexes do not shed much and require little grooming. However, they may need to be bathed because skin oils tend to collect on their skin. How often it has to be done depends on the cat, some cats can be bathed only once a month, others will need their bath every week.
Ears. Just like with any other cat, Cornish Rexes ears need to be regularly checked for wax.
Teeth. It is good to have your cat’s teeth brushed once in a while. If the cat is introduced to teeth brushing at a young age, it should allow you to do it.
Claws need to be occasionally clipped. I know of a case when a neglected Cornish Rex cat had its claws grow so long that they reached the inner side of the paw and bit into it.
Aging. The average lifespan of Cornish Rex cats is 9-15 years. Regularly veterinary checks are advisable after the age of 8, as well as yearly blood tests to detect possible kidney problems.