Ask the Vet – Cannon keratosis in horses


SARAH: What is the
fungus horses get on the front of their cannon
bones on their back legs, and how can I get rid of it? DR LYDIA GRAY: One of the
names for this is stud crud. It’s icky. SARAH: How delightful. DR LYDIA GRAY: It’s gross. It’s crud. I think the scientific
name that we’re all looking for is cannon
dermatitis or cannon keratosis. SARAH: OK. DR LYDIA GRAY:
Cannon keratosis– these are the words that will be
on the screen when we’re done– and cannon
dermatitis, dermatitis meaning skin inflammation,
and keratosis meaning just a abnormal
overgrowth of normal skin tissue. So it’s normal skin tissue,
but it was excessive. We didn’t need that much. And it tends to be also
a little greasy and oily. And if a horse has it, not all
horses have it, but if they do, it’s very hard to get rid of. So I can see why
it’d be frustrating. Fortunately, this is one thing
that my horse does not have. SARAH: The rare ailment
Newman does not suffer. DR LYDIA GRAY: The rare ailment. I’ve seen a million
ways to deal with it. The first piece of
advice I would give you is get a diagnosis from
the vet just to make sure, because this person
said the skin fungus. It’s actually not a fungus. So it’s widely misdiagnosed
between rain rot, and scratches, and
other skin funk. But it’s not. And so you probably will need
a combination of shampooing, and some topicals, and currying. What I would caution,
don’t be too aggressive. SARAH: Mm. DR LYDIA GRAY: Don’t rub,
and scratch, and pick, and make it worse. Then you’ll have a
bacterial infection that will need additional treatment. You know how I always say, I
feel like in almost every one of these, ignore it? Don’t look. SARAH: Yeah, just
don’t look at it. DR LYDIA GRAY: It probably
isn’t bothering your horse. Now, if you have a halter
horse, and looks are everything, you want to work
on it a little bit. But talk to your
vet, and develop a program that works
in your horse that’s not too aggressive. Don’t make it worse
than it already is. SARAH: So can I ask you
about cause for this? Because when this
question was bubbling up to the top of the voting,
there was a lot of chatter among the riders at SmartPak. DR LYDIA GRAY: Oh. SARAH: And I think everyone
was a little embarrassed. Nobody wanted to say what
they thought caused it. But then everyone quietly
kind of mumbled and was like, I think everyone says it’s
geldings peeing on themselves. Because that’s
what everyone says. DR LYDIA GRAY: And
the name stud crud. SARAH: Because it’s
on their back legs. DR LYDIA GRAY: Yeah. SARAH: And so that’s why
everyone– Yeah, stud crud, and you’d think like it’s all– DR LYDIA GRAY: Yeah,
mares get it too. SARAH: Yeah. Geldings get a bad
rap sometimes, guys. DR LYDIA GRAY: The cause isn’t
really fully flushed out. And it’s not infection,
although it can get infected. It’s more just like a
seborrhea, an oily seborrhea in whatever species,
even people. It’s just that your
skin is overdoing it. It’s like, calm down everybody. We have enough skin. It’s pretty. You can stop. But the skin’s like, maybe a
little more would be great. SARAH: So your horse
is an overachiever. Not a horse that’s peeing
on his own back legs. DR LYDIA GRAY: Right. SARAH: Stop shaming him.


5 Responses

  1. Emily

    February 9, 2017 8:47 pm

    Why do people use splint boots? How do I know if my horse needs them or any other kinds of boots? #askthevetvideo

  2. Sara G.B.

    February 10, 2017 4:20 am

    Please do a discussion on sarcoids and the best to deal with them when surgery is not an option. #askthevet

  3. Nixx

    February 10, 2017 8:24 am

    My mare gets this more in warmer months and a lady at my barn thought she would "help me" by picking the gunk off until it bled and now shes got scars all over…


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