Dachshund IVDD: FGF4 genetics, screening and the real cost of care
The dachshund is the breed most exposed to intervertebral disc disease, and it is not merely a matter of its long silhouette: it is first and foremost a question of genetics. A study by Emily Brown and colleagues, published in 2017 in PNAS, identified an FGF4 retrogene inserted on canine chromosome 12 (CFA12) as responsible both for chondrodystrophy, the short limbs that define the breed, and for a sharply increased risk of disc herniation, with an odds ratio of 51 in their analysis (study on Google Scholar). Before taking on a puppy, it is worth reading the dachshund breed profile with a clear idea of what this genetic feature means day to day.
What the FGF4 retrogene actually does
The extra copy of the FGF4 gene alters cartilage development. In so-called chondrodystrophic breeds, the nucleus of the intervertebral disc mineralises early and loses its shock-absorbing elasticity: it can then rupture and compress the spinal cord, sometimes abruptly, in a young dog. The authors describe a dominant effect that lowers the age of onset and raises overall risk. Warning signs worth knowing include an arched back, trembling, refusal to jump, pain on handling, a wobbly gait and, in severe cases, hind-limb paralysis. None of these can be diagnosed at home: only a veterinary consultation, possibly supported by imaging, can confirm what is happening.
Screening: calcification score or DNA test?
A DNA test for the FGF4 retrogene is available, but it is not the silver bullet many expect. A study by Camilla Sichlau Bruun and colleagues, published in 2020 in Canine Genetics and Epidemiology, compared the two breeding schemes: the radiographic disc calcification score remained the better indicator of herniation risk, while the inserted allele was almost fixed in the long-haired and smooth-haired populations, making it unusable on its own to select breeding stock (study on Google Scholar). In practice, a careful buyer asks the breeder for the parents' calcification score, taken by radiography at around two years of age in the official schemes run in several countries.
Everyday prevention: weight, jumping, harness
Genetics is not an absolute fate, and modifiable factors matter. A study by Rowena Packer and colleagues, published in 2013 in PLOS ONE, showed that the ratio of back length to height at the withers weighed heavily on the risk of thoracolumbar disc extrusion, and that being overweight raised it too (study on Google Scholar). Three simple levers follow: keep the dog lean and closely monitored, limit repeated jumps off the sofa or out of the car by fitting ramps, and swap the collar for a harness that spreads the pull. Regular grooming and handling, covered in our dog care and grooming pages, also helps you spot unusual stiffness early.
Care budget and the case for insuring early
A suspected disc herniation quickly chains together consultation, cross-sectional imaging, hospitalisation, often decompressive surgery and then rehabilitation. Imaging alone frequently runs to several hundred euros, and a full surgical episode often reaches several thousand, depending on the clinic and the severity. This is exactly the spending profile a health policy absorbs, provided you sign up before any episode: contracts almost always exclude known pre-existing conditions and apply waiting periods to orthopaedic problems. Compare the options to insure a dachshund and read our guide to pet insurance for dogs before deciding.
Frequently asked questions
Do all dachshunds carry the FGF4 retrogene?
The insertion is very widespread in the breed, to the point of being almost fixed in some varieties according to the work of Bruun and colleagues. A negative test is therefore rare, and a positive result alone does not predict a herniation.
Should stairs and the sofa be off limits?
Caution suggests limiting repeated descents and high jumps, fitting ramps and steps instead. Nothing replaces your vet's advice, which will be tailored to your dog's age and condition.
When should I insure a dachshund?
As early as possible, ideally the moment the puppy arrives and before any back-related sign appears. An episode that has already occurred is generally treated as an uncovered pre-existing condition.
This guide is part of Planète Pets’s Dogs universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.