#polydactyly

The requester elaborates: “ On Cait, her homeworld, she was born with polydactyl (it seems anyway. the thing with Caitians is that because they only appear in the animated versions, we don't know anything about their biology [+ ... Caitians in other series have 3 fingers and a thumb whereas she has 4 fingers and a thumb]) and a tail difference but they were mostly fine. The tail difference affected her balance when she first learnt to walk because the instructions she was getting were just general instructions for most Caitians and didn't take her tail into account.

In her teenage years (or Caitian equivalent), she started an androgenising puberty which she was fine with in and of itself but made her ostracised a little and in adulthood, she joined Starfleet as a medical officer and eventually a doctor. as a Caitian, people react in certain ways to her (canon. the quote "just a cat in a coat" comes to mind) but she's already used to being the odd one out so it affects her but it's nothing new. Meanwhile on every ship she's on, most of the crew don't notice she's intersex because they don't know enough about Caitian sexes to know.

However, on one assignment, her tail gets amputated about halfway (canon). Caitians don't use tail prosthetics because they're too heavy for the tail's natural function and don't have a good connecting area. They never even thought of it for those reasons but humans still suggest it often. Despite it being the 24th century, T'Ana doesn't regenerate her tail (canon) because her hormone variation means she does not react well to most regeneration technology and she, understandably, isn't willing to risk it on an already vulnerable body part.

Her hormonal variation also means her mating season is affected so it's very rough physiologically and the usual methods (using a post) don't work so she rides it out in her sickbay office by turning the lights down and laying in a box (that end part is heavily implied). But other Caitians say it "can't be that bad". The variation also causes differences in sweating as she can sweat from her forehead when most felines can't (so I'm assuming that typically applies to Caitians too)