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Spraddle leg (also called splay leg) is when a young chick’s legs slide out to the sides so it cannot stand or walk normally, and it is most often caused by slick flooring or an injury soon after hatching. Caught early, it is commonly treated by holding the legs in a normal position with a soft hobble. This guide covers the causes, how to fit a hobble safely, how to tell spraddle leg from slipped tendon, and how to prevent it.
Key Takeaways
- Spraddle leg usually affects both legs and is most often linked to slippery surfaces or chicks piling on each other soon after hatch.
- Treatment is a soft hobble that holds the legs under the body in a normal position.
- If a chick shows no improvement after about a week, humane euthanasia is often the kindest option.
- Slipped tendon (perosis) is a different condition, usually in one leg, linked to nutrient deficiencies such as choline and manganese.
- Prevent it with textured, non-slip flooring in the incubator and brooder and a complete chick starter feed.
Correction: an earlier version of this article overstated genetics as a cause, recommended genetic testing, binder-clip splints, orthopedic surgery, anti-inflammatory drugs and probiotics, invented humidity effects on leg development, and confused spraddle leg with slipped tendon.
What spraddle leg looks like
A chick with spraddle leg has one or, more often, both legs splayed out to the side, as if doing the splits. It struggles to stand, may scoot on its belly, and can have trouble reaching feed and water.
The problem usually shows up in the first days after hatch, when the chick’s legs are still weak and it cannot get a grip on the surface underneath it.
What causes spraddle leg
Slippery surfaces
The most common cause is a slick floor. Newspaper, smooth wood, cardboard and plastic give a newly hatched chick nothing to grip, so its legs slide outward. This applies to the incubator floor as well as the brooder.
Injury
Chicks can also be hurt when other chicks pile on top of them.
Nutrition
Riboflavin (vitamin B2) deficiency causes curled-toe paralysis, straddled legs and chicks sitting on their hocks. Vitamin D3 deficiency causes soft bones and more lameness in chicks. A complete chick starter feed supplies these nutrients; see our guide to what is in chick starter feed.
Spraddle leg vs. slipped tendon (perosis)
Slipped tendon, or perosis, is often mixed up with spraddle leg, but it is a different problem:
| Spraddle leg | Slipped tendon (perosis) | |
|---|---|---|
| Legs affected | Usually both | Usually one |
| Main causes | Slick flooring, injury soon after hatch | Deficiency of choline or manganese (biotin is also involved) |
| Typical age | First days after hatch | Growing chicks, usually under 6 weeks |
| What happens | Legs slide out to the sides | The tendon at the back of the hock slips out of place, twisting the leg |
A hobble does not correct slipped tendon. If one leg is twisted at the hock, or the chick does not respond to a hobble, have a veterinarian examine it.
How to treat spraddle leg with a hobble
The standard treatment is to tape or strap the legs together so they stay in a normal standing position while the chick’s muscles strengthen.
- Move the chick onto a non-slip surface, such as a textured paper towel or an old cloth towel.
- Loosely join the legs with a soft hobble, for example a narrow strip of self-adhesive bandage, so the legs sit under the body about as far apart as a healthy chick’s.
- Make sure the hobble is not tight enough to cut off circulation. Feet should stay warm and normal in color.
- Check the chick several times a day, and confirm it can reach feed and water. Place them close by if needed.
- Refit or remove the hobble as the chick grows so it does not become too tight.
If you have never fitted a hobble, ask a veterinarian or an experienced keeper to show you.
Do not use improvised clips or rigid devices that can pinch fragile legs, and do not give chicks any medication unless a veterinarian prescribes it. Drugs not labeled for chickens are extra-label and need a vet’s direction and a withdrawal time.
When a chick does not improve
Virginia Cooperative Extension advises that if a bird shows no improvement after a week, it is most likely best to have it humanely euthanized. There is no surgery or professional physical therapy that fixes spraddle leg in chicks.
If you cannot do this yourself, a veterinarian can perform humane euthanasia. Call ahead to check that they see poultry.
How to prevent spraddle leg
- Line the incubator floor and brooder with a textured surface for the first two weeks, such as textured paper towels, old cloth towels or burlap.
- After that, switch to about 3 inches of pine shavings, chopped straw or peanut hulls.
- Avoid shiny printed newspaper, cardboard and plastic, which are slippery and can lead to leg damage.
- Keep the brooder at about 90 to 95 degrees F for the first week, then lower it 5 degrees each week, and give chicks enough room to move away from the heat so they do not pile up. See our baby chick care guide.
- Feed a complete chick starter from day one so chicks get riboflavin, vitamin D3, choline and manganese.
- Follow your incubator maker’s temperature and humidity settings; our incubator settings guide covers the basics.
Free tools
- Chick Temperature & Feed Chart: brooder temperature and feed for each week
FAQs
Can spraddle leg fix itself?
Do not count on it. The recommended treatment is to hold the legs in a normal position with a hobble and move the chick onto a non-slip surface. If there is no improvement after about a week, humane euthanasia is most likely the best option.
How long should a chick wear a hobble?
Check it several times a day and refit it as the chick grows so it never becomes tight. Virginia Cooperative Extension suggests judging progress over about a week.
Is spraddle leg genetic?
It is most often caused by slippery flooring or injury after hatch, with nutrition also playing a role. There is no genetic test for spraddle leg.
What is the best bedding for newly hatched chicks?
Textured paper towels, old cloth towels or burlap for the first two weeks, then about 3 inches of pine shavings, chopped straw or peanut hulls.
Conclusion
Spraddle leg is usually preventable with non-slip flooring and a complete starter feed. If it does happen, a soft hobble applied early often helps. If a chick does not improve after a week, humane euthanasia is the kind choice.
Sources
- Virginia Cooperative Extension: Leg and Foot Disorders in Domestic Poultry
- Mississippi State University Extension: Feeds and Nutrition
- UNH Extension: Brooding and Caring for Chicks
- Merck Veterinary Manual: Vitamin Deficiencies in Poultry
- Merck Veterinary Manual: Mineral Deficiencies in Poultry
- Poultry Extension (extension.org): Poultry End-of-Life Situations in Small and Backyard Flocks
- FDA: The Ins and Outs of Extra-Label Drug Use in Animals
Checked September 2026. Labels change, so always read the label on the product you buy. See our editorial policy for how we research health articles.
