
Please note that this page is in several sections for technical reasons. There is a link at the end of each section to take you to the next.
Introduction
This cat breed is another instance of a natural genetic mutation affecting a part of the cat’s body that has been seen by people as different and attractive. The dominant genetic mutation affects the cartilage of the ear flaps (pinnae) causing the ears to fold down against the head. Cat of this breed were (still are?) called lop-eared cats. With the folded ears and large eyes this cat has the appearance of an owl.

In terms of body shape, it is considered to be in between the British and American Shorthair cats1. All Scottish Folds are born with straight ears and not all kittens in a litter will have folded ears. At about 13 to 23 days old the ears start to fold1 (the CFA say 21 days). The ear flap is called the pinna. Selective breeding has created several folds whereas the initial mutation produced one4.
The greatest obstacle to making a success out of this breed of cat is the health issues associated with the genetic mutation that produces the folded ears. Some breeders say that Fold can be breed to Fold while others disagree1.
“We have a 19-year-old indoor Scottish Fold named K.C. He doesn’t have folded ears but is the BEST cat ever. We couldn’t ask for a nicer temperament. He has “raised” 2 children and followed us to 6 different states for the Army without complaining a bit!” …..Susie (Fort Leonard Wood, MO)
Good Morning Michael,
There does not seem to be anything abnormal about his tail or fore paws at all. All I know is that he is totally a different cat. He isolates himself most of the day and doesn’t want to held. Which is 180 degree turn around behavior wise. They wanted to put Harley on an Opioid and then told me it would make him a little crazy. I didn’t want that if he is limping now what could that do for him if it would make him race around. As I say, he sleeps most of the time and acts like he is a much older cat, not a cat that is a little over a year. I did contact a vet out of our area and without seeing Harley she did say that it could be in his joints but may not even show up on a xray. She recommended Dasequin a glucosamine product. The vet that I did take Harley to did not think that would help and dismissed that idea. I will investigate that more myself. I don’t want him to be in pain and would love to have my old Harley back but I don’t think that will ever happen. No matter what this vet has said to me Michael, I believe in my heart and soul that Harley has some kind of joint problem. Again your input has meant so much to me. I will just give Harley all the love and attention he wants and monitor him very closely.
Many thanks Janet. That was not a good vet visit. And they don’t seem to have a handle on what is going on. I agree that it is almost certainly not a soft tissue injury.
Janet, I have just checked my article and I note this:
In other words the gene causing the folded ears can also affect the feet and tail. Are his paws swollen and stiff? Is his tail the same? Is there anything abnormal, even slightly abnormal, about his fore paws and his tail?
Alos my Scot Fold article states this:
It would seem to me that Harley is arthritic in his front legs and his paws may be stiffened. All-in-all I’d say he is suffering from the side effects of having flat ears.
Thanks for replying and I look forward to finding out what is wrong. I suppose the question is whether it is a genetic illness (i.e. linked to being a Scottish Fold) or not.
Took Harley into the vet today at 8am. After talking to the vet and showing a video of Harley limping on both front legs and sharing with her the health problems some Scottish Folds develop I left him at the facility as they said it might take time. Around 4 pm. called they said they had a few problems with their x-ray machine they had to wait for the radiologist to read the film and make a report. No signs of Osteochondrodysplasia. He suspects a soft tissue injury. Okay so his limping has gotten worse on the left front leg. If he had a soft tissue injury wouldn’t it show signs of getting better not worse? Also, the limping is now in the right front leg.(another soft tissue injury). I do not agree with his opinion. Harley is strictly an inside cat sleeps nearly all day and night. Personality has changed from constantly wanted to be loved to being very withdrawn. They suggested maybe a specialist, may a infectious disease specialist. The report ended up by saying Bilateral enthesophytosis of the calcaneus with mild tarsal osteoarthrosis, although give they young age, some level of developmental malformation could be present. So after $500 dollars I am left confused, worried and feel helpless on how to help my Harley. I just wanted to let you know the outcome.
I take him to the vet today. I will let you know what they say. Thank you so much for you information and taking time to reply to me.
I am not sure but…it seems possible based on my research.