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Body system: Bones, joints and muscles. One of the core guides in our dog health conditions library. If your dog has worrying signs right now, start with our symptom triage guides.
A fracture is a break in a bone. The break may run partway through the bone or pass all the way through it, and a single bone may break in one place or in several places. Veterinarians describe fractures by pattern, such as transverse, oblique, spiral or comminuted, and by whether the skin over the break is intact. A closed fracture stays under unbroken skin. An open fracture connects to a wound, so dirt and bacteria can reach the bone, which raises the risk of infection and makes prompt treatment more urgent. Some fractures affect a joint surface or a growth plate in a young dog, and those locations need especially careful repair so the leg can keep working normally.
Most fractures follow a sudden injury, but the injury also damages muscles, blood vessels and nerves around the bone, so pain and swelling are only part of the problem. A dog that cannot bear weight after a fall or collision needs same day veterinary care, even if the limb looks straight. Moving a broken limb without support can shift the bone ends, worsen bleeding and increase pain. Careful handling, pain relief and imaging allow the veterinary team to judge the whole injury, including the chest, abdomen and other limbs, before deciding how the bone should be held still while it heals. With the right repair and close follow up, many dogs regain comfortable use of the limb, although healing takes weeks and activity must stay limited during that time. Fractures can occur in almost any bone. Long bones of the legs are injured often, but the pelvis, jaw, ribs, toes and spine can also break, and each location brings its own concerns. A rib fracture can sit close to the lungs, a jaw fracture can stop a dog from eating comfortably, and a spinal fracture can threaten the spinal cord. Puppies add another concern, because a break through a growth plate can affect how the bone grows afterward if it is not aligned well. Older dogs and dogs with other illnesses may heal more slowly, so age and general health shape the plan as much as the break itself. The classification of the fracture, its location and the state of the surrounding tissue together guide every decision that follows.
Most fractures in dogs follow trauma. The Merck Veterinary Manual lists vehicle accidents, firearms, fights and falls as frequent causes, and everyday events such as jumping from furniture, being stepped on or landing badly during play can also break a bone, especially in puppies and small dogs. In a smaller group of dogs the bone is already weakened before it breaks. Tumors, bone infection and some nutritional or metabolic problems can thin or damage bone so that a minor slip causes a break. That type of break is called a pathologic fracture, and it needs investigation of the underlying disease as well as repair of the bone itself. The strength and direction of the force also shape the injury, and bending, compression, twisting and pulling forces produce different fracture patterns.
Breeds and dogs at higher risk: Any dog can break a bone after an accident. Puppies are at higher risk because their bones and growth plates are still developing, and small and toy breeds can fracture a foreleg after a short fall or jump. Active young dogs that roam or chase near roads face more trauma risk.
Diagnosis starts with a full examination, because a dog with one obvious injury may have other injuries that are less visible. The veterinarian checks breathing, circulation, pain level and nerve function, then examines the injured limb for swelling, wounds and abnormal movement. Radiographs (X-rays) of the injured area confirm the fracture and show its pattern, position and effect on nearby joints. Sedation is often used so the dog stays still and comfortable while images are taken. CT imaging can help with complex fractures of the spine, skull, jaw or pelvis. Blood tests may be done before anesthesia, and chest or abdominal imaging may be added after major trauma. The veterinarian also compares the injured limb with the opposite limb and checks toe warmth, feeling and movement. Repeat radiographs during healing confirm that the bone ends have stayed in good position.
Treatment aims to relieve pain, realign the bone ends and hold them still long enough for healing, while protecting soft tissues and preventing infection. Pain control is started early and may combine several approaches, including anti-inflammatory medication and other analgesics chosen for the individual dog. Some stable, incomplete fractures in young, healthy dogs can heal in an external splint or cast, provided the joints above and below the break can be immobilized and the device is checked often. Many other fractures heal best with surgery. Internal repair can use bone plates and screws, pins, wires or interlocking nails, while external fixators hold the bone with pins connected to a frame outside the limb. Bone grafts are sometimes added to support healing. Open fractures need urgent wound care and antimicrobial medication because of contamination. Amputation is considered only when a limb cannot be repaired or would remain painful. After repair, rehabilitation and controlled exercise help restore strength and movement. Owners should never try to reset a bone at home, and human pain relievers should not be given unless a veterinarian directs it. Splints and casts are not a do it yourself option. A poorly fitted device can cut off circulation or let the bone shift, so fitting and rechecks belong to the veterinary team.
Home care centers on strict rest and protecting the repair. Keep your dog confined to a small, quiet area, use a leash for toilet breaks, and block stairs, jumping and rough play. If a splint or cast is fitted, keep it clean and dry, check toes daily for swelling or coldness, and call the clinic if the device slips, smells bad or gets wet. Give prescribed medication on schedule and attend every recheck, since follow up radiographs show whether healing is on track. VCA Hospitals notes that strict rest is commonly recommended for the first 4 to 6 weeks and that most fractures heal over about 6 to 12 weeks, although some take longer.
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Some fractures can heal without surgery, particularly stable and incomplete breaks in young dogs that can be held well in a splint or cast. Many complete, displaced or joint fractures heal better with surgical repair. Only radiographs and an examination can show which approach fits your dog, so every suspected fracture needs prompt veterinary assessment.
Healing time depends on the bone, the fracture pattern, the repair and the age and health of the dog. VCA Hospitals reports that most fractures heal in about 6 to 12 weeks, with strict rest for the first 4 to 6 weeks. Follow up radiographs confirm progress before activity is increased.
Keep your dog still and quiet, and avoid handling the injured limb more than necessary. Do not try to straighten the bone or apply a tight splint without veterinary guidance. Cover an open wound loosely with a clean cloth, keep your dog warm, and transport your dog carefully to a veterinary clinic right away.
Internal implants often stay in place for life and cause no problems. Removal is usually considered only if an implant becomes infected, loosens, irritates soft tissue or causes pain. Your veterinarian will judge this at recheck visits using your dog's comfort, limb use and follow up radiographs of the healing bone.
Yes. Most fractures follow trauma, but a break after minor force can occur when bone has been weakened by a tumor, infection or a nutritional or metabolic problem. This is called a pathologic fracture. Your veterinarian may recommend extra tests, such as blood work or a bone sample, to find and treat the underlying cause.
This page is general information drawn from the published guidance of the organizations listed under Sources below. It is not veterinary advice, and it does not replace your own veterinarian, who knows your dog. If your dog may have eaten something toxic, contact your veterinarian, the ASPCA Animal Poison Control Center on (888) 426-4435, or the Pet Poison Helpline on (855) 764-7661 straight away. A consultation fee may apply on the helplines. If your dog is struggling to breathe, has collapsed, is having a seizure that will not stop, or has a swollen belly with retching that brings nothing up, go to an emergency veterinarian now and do not wait to finish reading.
Last updated: November 2026. Facts on this page were checked against the sources listed above. How we work: our methodology.