What should I do if my horse has mild stocking up and no lameness?
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Overview
If your horse has mild stocking up and is not lame, it often points to fluid building up after standing still rather than an urgent injury. It can happen after a night in the stable, a change in routine, or reduced movement, but there are several possible causes, so it’s worth checking the legs properly and keeping an eye on how it changes.
Things To Check
1. Check whether the swelling is on one leg or both, and whether it’s in the lower leg, cannon, or around the fetlock.
2. Feel for heat, pain, or a stronger pulse in the foot, even if your horse is moving normally.
3. Look for any cuts, scabs, insect bites, mud irritation, or signs of rubbed skin.
4. Watch your horse walk on a straight line and turn both ways to make sure there’s no stiffness or subtle lameness.
5. Think about whether the swelling is worse after stabling, after box rest, or after a longer spell of standing in one place.
6. Check for a recent change in turnout, exercise, bedding, hard ground, travel, or workload.
7. Compare the leg with the opposite side and note whether the swelling is soft and puffy or firm and more defined.
Common Causes
The most common cause is simple fluid build-up from reduced movement, especially after standing in a stable or box rest. Many horses get mild stocking up when they have been less active than usual.
It can also be linked to turnout changes, travel, warm weather, or a period of harder work followed by standing around more than normal. Minor skin irritation, flies, or a small knock may also contribute.
Less commonly, swelling can be related to a more significant problem such as infection, injury, or inflammation. That’s why it’s sensible to keep checking the leg rather than assuming it’s harmless every time.
What To Do
Start by encouraging regular movement, as gentle exercise often helps fluid shift more naturally. If your horse is comfortable, a normal walk or ridden exercise session may be useful.
Keep the legs clean and dry, and make sure the stable or turnout environment isn’t contributing to irritation or excess mud. If your horse has been standing in for longer than usual, try to reduce the amount of time spent still.
Monitor the swelling over the next 24 hours. It’s helpful to note whether it improves after exercise, stays the same, or becomes worse. Take a photo if you want to compare changes more easily.
If the stocking up is a regular pattern, look at the horse’s daily routine, turnout, and how much time they spend moving around. Small management changes often make a difference.
When To Contact A Vet
Contact your vet if the swelling is sudden, significant, hot, painful, or clearly worsening, or if your horse becomes lame. You should also get advice if there’s a wound, discharge, fever, or the leg does not improve with normal movement and routine care.
Products That May Help
If your horse is prone to filled or stocked-up legs, keeping on top of turnout, mud and routine leg care can make day-to-day management easier.
Related Questions
Why do horses stock up overnight?
How can I tell stocking up from swelling that needs a vet?
Does exercise help a horse with mild stocking up?
Atlas is here to support owners with practical, easy-to-understand guidance. It is not a substitute for professional veterinary advice. If you're concerned about your animal's health, symptoms worsen, or something doesn't feel right, contact your vet.