Hypertrophic osteodystrophy sits on the Weimaraner's health list and is one of the few conditions here that is genuinely urgent, genuinely breed-associated, and frequently misread by first-time owners.
It is an inflammatory bone disease of fast-growing large-breed puppies, typically appearing between about two and six months. The growth plates at the ends of the long bones — usually the forelegs, just above the wrist — become inflamed, and the presentation is distinctive: hot, firm, painful swellings just above the joints, a puppy that is reluctant to stand or move, and, critically, a fever. Some puppies are systemically unwell with lethargy and loss of appetite. It can be severe.
The reason it matters to recognise: a lame puppy with a temperature is not a sprain, and it needs veterinary attention promptly. Treatment is supportive — pain relief and anti-inflammatories — and most cases resolve, though relapses within the growth period are common.
The risk factors point toward practical prevention. Over-nutrition and rapid growth are implicated, as is over-supplementation with calcium. That means feeding a large-breed puppy formulation with controlled calcium, resisting the urge to grow the puppy quickly, keeping it lean, and not adding mineral supplements to a complete food. The same regime protects the hips.
Von Willebrand's disease is the other entry worth naming. It is an inherited clotting disorder that usually causes no problem until the dog needs surgery or suffers an injury, and there is a DNA test in the breed. Ask for both parents' status, and make sure any surgeon knows the result before an elective procedure.
Bloat heads the list, and the Weimaraner's deep narrow chest earns it that position. Split meals, quiet time around eating, a slow-feeder bowl if needed, and a known route to an out-of-hours clinic. Prophylactic gastropexy is a legitimate conversation for this breed.