If your young dog woke up limping one morning with no fall, no rough play and no obvious cause, it's natural to feel worried. For large and giant breed puppies and adolescents, one possible explanation is panosteitis, often called "pano" or "growing pains". It sounds alarming, but it is a well-known condition that usually settles by itself as the dog matures.
That said, please don't put a limp in a young dog down to growing pains until a vet has examined it. Other causes of lameness in growing dogs can be more serious, and a vet visit is the only way to tell them apart. Pain relief and veterinary guidance come first, and everything else plays a supporting role.
In this article we explain what panosteitis is, which dogs get it, how vets diagnose it and what sensible management looks like. We also look honestly at where a joint supplement fits, and where it doesn't, including how to think about long-term dog joint health once your dog has grown up.
Choosing a joint supplement for a dog with pano
Panosteitis affects the shafts of the leg bones rather than the joints, so it helps to be clear about what a supplement can and can't do. Your vet leads on pain relief and rest. A complementary feed sits quietly alongside that plan, supporting your dog's joints as they grow into a big adult.
The table below compares MedPaw, our own product, with five popular UK options, starting with how many of six key joint actives each one contains.
Key joint actives in the UK's leading dog joint supplements
| Ingredient | MedPaw Hip & Joint Chews Max | NutraPaw Joint Support | YuMOVE Joint Support PLUS Max | Seraquin Joint | Synoquin EFA | Nutraquin+ |
|---|---|---|---|---|---|---|
| Key joint actives | 6 of 6 | 4 of 6 | 3 of 6 (+1 via mussel) | 2 of 6 | 2 of 6 | 3 of 6 |
| Glucosamine | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Chondroitin | ✓ | ✗ | Via mussel | ✓ | ✓ | ✓ |
| MSM | ✓ | ✓ | ✗ | ✗ | ✗ | ✗ |
| Green-lipped mussel | ✓ | ✓ | ✓ | ✗ | ✗ | ✗ |
| Hyaluronic acid | ✓ | ✓ | ✓ | ✗ | ✗ | ✗ |
| Boswellia | ✓ | ✗ | ✗ | ✗ | ✗ | ✓ |
| Omega-3 | Mussel, flax | Mussel | Mussel, fish oil | ✗ | Krill oil | ✗ |
| Turmeric | ✗ | ✓ | ✗ | ✓ | ✗ | ✗ |
| Collagen | ✗ | ✓ | ✗ | ✗ | ✗ | ✗ |
| Antioxidants | Vit C, Vit E, zinc | Manganese | Vit C, Vit E, manganese | ✗ | Vit C, zinc | Vit C, zinc |
| Format | Soft chew | Tablet | Tablet | Chewable tablet | Tablet or capsule | Capsule |
| Guarantee | 60 days | 90 days | 6 weeks | Not stated | Not stated | Not stated |
✓ = included, ✗ = not listed. Key joint actives: glucosamine, chondroitin, MSM, green-lipped mussel, hyaluronic acid and Boswellia. Taken from each manufacturer's published information, September 2026.
The top row is the one to look at. MedPaw Hip & Joint Chews Max is the only one of the six with all six key joint actives: glucosamine, chondroitin, MSM, green-lipped mussel, hyaluronic acid and Boswellia serrata. The others range from two to four. For a large breed dog with years of running ahead, that breadth is a sensible foundation.
Size matters here, because pano dogs are usually big. At 18kg and over the label says 2 to 3 chews a day, doubled for the first three weeks, with 2 to 3 months of daily use recommended for optimal results. The soft chew is easy to hand over as a treat, which suits a dog who is already sore and fussy.
MedPaw supports joints, mobility and comfort alongside veterinary care, and it does not replace it. There is a 60-day money-back guarantee, and Subscribe & Save if you would like regular deliveries.
See MedPaw Hip & Joint Chews Max Take a look at the full ingredient list and feeding guide to see how the chews could fit into your dog's daily routine.
What "growing pains" in dogs really means
Panosteitis is a painful inflammation of the outer surface or shaft of one or more of the long bones in the legs. Vets often compare it to growing pains in children, which is where the nickname comes from. It isn't a problem with the joints themselves, but with the shafts of the leg bones.
The underlying cause isn't known. Genetics (especially in German Shepherds), stress, infection, metabolism and nutrition have all been suggested as possible factors, but no specific gene mutation has been identified. The pain is thought to come from increased pressure inside the bone and irritation of pain receptors in the bone's outer lining.
One reassuring point is that panosteitis does not affect the bone marrow's ability to make blood cells, and there is no lasting injury to the marrow. It is considered self-limiting, which means it runs its course and resolves as the dog reaches maturity.
Which dogs are affected and when
Panosteitis affects young, fast-growing dogs, mostly large and giant breeds. German Shepherds are the most commonly affected, and Great Danes, Golden Retrievers, Labradors, Rottweilers, Dobermanns and Basset Hounds are also named. Males seem to be affected more often than females, though either sex can develop it.
Most affected dogs are between 6 and 18 months old, although one veterinary source gives a range of 6 months to 2 years. Signs can appear as early as 2 months. Episodes can come back until around 2 to 2.5 years of age, when the condition resolves by itself.
There are exceptions. Dogs as old as 5 have occasionally been diagnosed, and German Shepherds over 2 can still be affected. That's one more reason to let your vet make the call rather than relying on age alone.
Signs to look for
The classic story is a sudden limp with no injury and no history of excessive exercise. Owners often describe their dog as having "woken up limping". The lameness can be mild or severe, and it often shifts from one leg to another over days or weeks.
- A limp that appears suddenly, with no clear cause
- Lameness that moves from one leg to another
- Pain when the affected bone is pressed
- Reluctance to play, walk or climb
- In some dogs, a fever, reduced appetite, tiredness or weight loss
The most commonly affected bone is the humerus (upper arm). The radius and ulna in the foreleg, the femur (thigh) and the tibia (lower back leg) can also be involved. Your vet will work out which bones are sore by watching your dog walk and pressing carefully along the legs.
Typical pattern of panosteitis compared with signs that need a closer look
| Feature | Typical of panosteitis | Needs prompt vet attention |
|---|---|---|
| Onset | Sudden, with no injury | After a fall or suspected injury |
| Which leg | Often shifts from leg to leg | A hot, swollen or deformed limb |
| Length of each episode | A few days to a few weeks | Lameness beyond 4 to 5 weeks without relief |
| General health | Usually otherwise bright, though some dogs are tired or off their food | Fever, vomiting, lethargy or refusing food |
| Age | Mostly 6 to 18 months | Signs recurring beyond about 2 to 2.5 years |
For guidance only, not a diagnosis.
Why a vet visit and X-ray matter
It's tempting to wait and see, especially if the limp seems to come and go. Please don't. An examination and X-rays also help rule out more serious causes of lameness in young dogs, such as infection, tumours, fractures and other bone diseases of growing dogs. That is the main reason we never encourage self-diagnosis.
What happens at the appointment
Your vet will take a history and watch your dog walk to see which legs are affected. They will then carry out an orthopaedic examination, pressing firmly along the legs and checking the back, neck and joints for pain. Pain on pressing a long bone, in a young large-breed dog with sudden lameness, is a big clue.
X-rays usually show increased bone density in the affected bones. A vet may also suggest blood tests, such as a complete blood count, to look for signs of inflammation.
Why an early normal X-ray is not the end of the story
Pain can start up to 10 days before changes show on an X-ray, so a normal early picture doesn't rule panosteitis out. Repeat X-rays about 2 weeks later can confirm the diagnosis. The degree of change on X-ray doesn't necessarily match how lame your dog is, and once the condition has resolved, the bone looks normal again.
Pain relief, rest and sensible exercise
Management is supportive. Vets may prescribe pain relief or anti-inflammatory medication, and meloxicam and carprofen are named in the veterinary sources. Dogs can respond differently to different drugs, so your vet may switch if your dog still seems sore.
Keeping your dog's pain well controlled is essential. Only give medication prescribed by your vet for your dog, at the dose and for the length of time advised. Human painkillers must never be given to dogs.
During a flare-up
Exercise should be restricted while your dog is sore. Keep to short lead walks and calm activity, and avoid stairs, jumping, rough play and sprinting.
Between episodes
Light to moderate exercise is encouraged when your dog is comfortable. Hard, vigorous exercise and very long walks are best avoided. If your dog has a poor appetite, offer a balanced, appetising diet.
Make home more comfortable
- Non-slip flooring so paws can grip
- A supportive bed in a quiet spot
- Help getting in and out of the car
- A simple diary noting the date, which leg, how long each episode lasts, appetite and energy
That diary is more useful than it sounds. The shifting, cyclical pattern is typical of panosteitis, and written notes help your vet spot it.
Feeding a large-breed puppy
Diet is the area where owners can do the most. High-protein or high-calcium diets have been linked with panosteitis, so a high-quality large-breed puppy food is advised.
Why not just switch to adult food?
It can seem logical to move a large-breed puppy onto adult food because it contains less protein and calcium. The veterinary sources advise against this. Adult food has fewer calories, so the puppy has to eat more of it to meet energy needs, which can actually raise total protein and calcium intake.
What works better
- A high-quality diet formulated for large-breed puppies or adolescents
- Carefully controlled portions to keep your dog lean
- Regular weighing and a body condition score check
- No extra protein or calcium unless your vet advises it
It's best to avoid an overweight puppy, as extra weight adds strain to growing legs. Ask your vet or vet nurse for a tailored feeding plan rather than adjusting the diet on your own.
How urgently to act on lameness in a young dog
Lingering or returning signs
Lameness lasting more than 3 weeks, continuing beyond 4 to 5 weeks without relief, or recurring beyond about 2 to 2.5 years. Book a re-examination.
A new limp in a puppy or adolescent
Any sudden limp, lameness that moves between legs, yelping when a leg is touched, or poor appetite alongside limping. Arrange an appointment soon.
Severe signs
Crying out, refusing to put any weight on a leg, a hot, swollen or deformed limb, fever, vomiting or rapid weight loss. Call your vet the same day.
Supplements: what they can and cannot do
We want to be plain about this. A supplement cannot diagnose or manage panosteitis, and it isn't a substitute for pain relief or veterinary care. One veterinary source mentions that in some cases nutraceuticals, omega-3 fatty acids or antioxidants may be helpful. That is a cautious, vet-led comment, not evidence that any particular product makes a difference to the condition.
Why improvement is hard to credit
Panosteitis resolves by itself as a dog matures, and episodes naturally come and go. If your dog seems better while taking a supplement, you can't assume the supplement caused it. Time would probably have done the same.
Ask your vet first
Growing dogs, especially large breeds, have specific nutritional needs. Anything added to the diet should be cleared with your vet first. Ask whether it suits your dog's age and size, how it fits alongside the complete food, and what you should keep an eye on.
When you look at a label, these simple checks help:
- Check the format (chew, tablet or capsule) against what your dog will actually take
- Compare ingredient lists rather than marketing claims
- Check the feeding guide against your dog's weight
- Look at the guarantee terms
- Check the label for age suitability
Looking ahead: joint care through adult and senior life
Supplements are more commonly associated with supporting joint comfort and mobility in adult and older dogs, when wear and tear and stiffness become more relevant. Once your dog has finished growing, long-term joint support is worth discussing with your vet, alongside a healthy weight, gentle regular exercise and a settled daily routine. If you want to compare options for older dogs, our guide to the best supplements for dogs with arthritis is a useful starting point.
MedPaw Hip & Joint Chews Max is a daily soft chew, sold as a complementary feed for dogs. Its key joint actives are glucosamine, chondroitin, MSM, green-lipped mussel, hyaluronic acid and Boswellia serrata. It also contains omega-3 from green-lipped mussel and flax seed, vitamins C and E, and zinc, and it is made with rapeseed oil and glycerine.
We don't give age guidance for puppies, so we aren't suggesting it for young growing dogs. If you have a puppy, please speak to your vet first. For adult dogs, the feeding guide is 1 chew a day up to 4kg, 2 for 5 to 17kg, and 2 to 3 for 18kg and over. The amount is doubled for the first three weeks, and we recommend 2 to 3 months of daily use. There is a 60-day money-back guarantee, and Subscribe & Save is available.
How other joint products differ
Joint supplements vary quite a lot in format and ingredients, so reading labels is worthwhile. Based on manufacturers' published information from September 2026:
- NutraPaw Joint Support is a tablet with glucosamine, MSM, green-lipped mussel, hyaluronic acid, turmeric and collagen, plus manganese. It does not list chondroitin or Boswellia, and has a 90-day guarantee.
- YuMOVE Joint Support PLUS Max is a tablet with glucosamine, green-lipped mussel, hyaluronic acid and fish oil, with chondroitin only via the mussel, plus vitamins C and E and manganese. It has a 6-week guarantee.
- Seraquin Joint is a chewable tablet with glucosamine, chondroitin and turmeric. A guarantee is not stated.
- Synoquin EFA comes as a tablet or capsule with glucosamine, chondroitin and krill oil, plus vitamin C and zinc. A guarantee is not stated.
- Nutraquin+ is a capsule with glucosamine, chondroitin and Boswellia, plus vitamin C and zinc. A guarantee is not stated.
The right choice depends on your dog, your vet's advice and what your dog will happily take every day.
When to call the vet
As a quick guide, call the same day if your dog is in severe pain, cries out, refuses to put any weight on a leg, or has a hot, swollen or deformed limb. The same applies to fever, lethargy, vomiting, refusing food or rapid weight loss.
Book a prompt appointment for any new or sudden limp in a puppy or adolescent dog, particularly a large breed. Lameness that moves from leg to leg, reluctance to play or climb, yelping when a leg is touched, or poor appetite alongside limping all deserve a visit too.
Arrange a re-check if lameness lasts more than 3 weeks, or continues beyond 4 to 5 weeks without relief, as this may point to a different bone disorder. The same goes for signs that return beyond about 2 to 2.5 years, pain that isn't controlled by current medication, or any worry about diet, growth rate or weight.
Growing pains can be distressing to watch, but most dogs come through them well with proper veterinary care, a lean body, calm exercise and a little patience. Once your dog has grown up, long-term joint comfort is a good conversation to have with your vet, and a supplement can be one small part of that plan.
Can I give my dog a joint supplement if they have panosteitis?
Panosteitis is a condition of the long bone shafts in young, growing dogs, and it needs a vet to diagnose it and rule out other causes of lameness. A supplement is a complementary feed and does not replace pain relief or veterinary care. Please ask your vet before adding anything to a growing dog's diet, as young large-breed dogs have specific nutritional needs.
Is MedPaw Hip & Joint Chews Max suitable for a puppy with growing pains?
We do not give age guidance for puppies, so we are not suggesting MedPaw Hip & Joint Chews Max for young growing dogs. If your dog is a puppy or adolescent, please speak to your vet first. Joint supplements are more commonly considered for adult and older dogs, to support mobility and comfort.
How many MedPaw chews would an adult dog of 20kg need each day?
At 18kg and over, the label guides 2 to 3 chews a day, so a 20kg adult dog would have 2 to 3 chews daily. The amount is doubled for the first three weeks, so that is 4 to 6 chews a day to start with. A tub holds 60 chews, and we recommend 2 to 3 months of daily use for optimal results.
How is MedPaw different from tablets like YuMOVE or capsules like Nutraquin+?
MedPaw Hip & Joint Chews Max is a soft chew that declares glucosamine, chondroitin, MSM, green-lipped mussel, hyaluronic acid and Boswellia serrata together. YuMOVE Joint Support PLUS Max is a tablet with glucosamine, green-lipped mussel, hyaluronic acid and fish oil, while Nutraquin+ is a capsule with glucosamine, chondroitin and Boswellia. Each manufacturer's own product page has the full composition, so it is worth comparing labels against what your dog will happily take.
Will a supplement stop my dog's limping from panosteitis?
Panosteitis tends to settle by itself as a dog matures, and episodes naturally come and go, so it is hard to credit any improvement to a supplement. A complementary feed is not a medicine and does not replace the pain relief your vet may prescribe. If your dog is limping, please book a vet appointment so the cause can be properly checked.
When should I see the vet rather than think about supplements?
Call your vet the same day if your dog is crying out, will not put any weight on a leg, or has a hot, swollen or deformed limb. A sudden limp, lameness that moves between legs, or a poor appetite alongside limping also deserves a prompt appointment. Supplements can wait until your vet has examined your dog and agreed it is a sensible addition.
