Yes, I've seen that happen. It should absorb in. I'd call in the morning if
it isn't better, or just calling won't hurt, but I know that would happen
when Amigo got it and once when Sugar had sub Q's her front legs got a bit
squishy.

Yes, Cory had that happen, it moved from his side down to one of his
forepaws.  I think it's okay but you might as well call the E-vet just
so you won't worry.

Candace

IT'S NORMAL..... breathe breathe breathe.....

SubQ fluids are usually given in the flank, and it takes a while for
the fluids to be absorbed.  It's not unusual for the fluids to migrate
down the leg

When we give fluids at work, it's always a good idea to find out where
the vet wants the fluids given.  Because if it were given by the
shoulders and then the fluids traveled down to the front legs and then
the doctor wanted an IV catheter placed, the edema caused by the fluids
would make placing the catheter difficult.

It's totally okay, and the fluids should take about 6-8 hours to absorb
into the body.  

Continuing purrs for Jessie...

Kristi

I'll defer to people with more cat subcutaneous fluid experience, but
even with people with much tighter skin, fluid can move. If it's not
tender to the touch, I'd tend not to treat it as an emergency but check
it frequently and perhaps see the vet at the office. Not quite the same
thing, but when I had my first cardiac catheterization, the methods were
not quite as good, and there was more blood leakage around the puncture
in my leg. I had a massive black-and-blue mark, not painful, that went
three-quarters of the way around my thigh. Eventually, to keep my ex
from freaking out, we went to the ER and were told, "yup, that's a blood
leak for a femoral vein puncture." Confirmed that hot soaks were a good
idea.

While that got me leisurely bubble baths, I doubt Jessie would
appreciate them.

Just as an aside, while we routinely hydrate humans today with
intravenous or sometimes intraosseous (in a bone, and no, it's not
painful when done properly) fluids, this is semi-recent.  Intravenous
fluid drips really were perfected only in the early 1940s.

Before that, a subcutaneous technique called hypodermoclysis was
standard medical technique, but had more side effects since human skin
isn't as stretchy as feline.

It's possible, but call the vet in the morning to be sure.

When we gave Fritzie sub-q fluids, he looked like a Brahma bull for a while,
the the fluids traveled down until he had a little pouch on or near his
abdomen.

Blessed be,
Baha

That happened with Jennifer (RB) when I was giving her subq fluids.  I gave
them between her shoulder blades, and the fluid often migrated down her leg.

Sandy

Ivy's (RB) subQ fluids constantly migrated before being absorbed.  Usually
flowed to her belly/chest area.  We called them her "water-boobies".  Of
course, TED showed us to give her the subQ on her back, preferrably between
her shoulder blades - but Ivy didn't like that.  She preferred to lay on her
side, so she invariably got the subQ fluids on the side she wasn't laying
on, so it flowed more easily to her chest/belly.  I think it was more of a
matter that she cold see what we were doing when she lay on her side, but
couldn't and therfore was more nervous & skittish if she lay on her belly.