- STOP HIM MOVING. Carry him. Do not let him walk, jump, or climb.
- CARRY HIM FLAT. One arm under the chest, one under the hips.
- CALL THE VET. Before you get in the car. If someone is with you, they call while you take care of the dog.
A same-day visit, not a wait-and-see. Full guide below ↓
"Fine this morning, paralyzed by lunch." That's the IVDD story almost every Frenchie owner who has lived through it tells. The breed's genetic gift — the short legs, the long body, the comic squat — comes with a curse. Discs that calcify before the dog turns two, then explode without warning.
I. ER — Right Now
Sudden inability to walk or use back legs. Crying out when picked up or moved. Hunched, tense back posture. Dragging feet, knuckling over. Loss of bladder or bowel control. Back legs completely limp when he is lifted.
Time matters most for Grade 5. The sooner he is in surgery, the better the odds.
II. What IVDD Actually Is
A spinal condition where the cushioning disc between vertebrae bulges, ruptures, or extrudes upward into the spinal canal. Disc material presses on the spinal cord, producing pain, weakness, or paralysis.
Think of a jelly donut between two bones. The jelly squirts out, hits the spinal cord, and the dog can't tell their legs to move.
III. Why Frenchies Are Prone
Frenchies are chondrodystrophic — their cartilage develops abnormally because of an FGF4 retrogene insertion on chromosome 12. Discs calcify and dehydrate at 1–2 years of age: brittle, dry, and prone to sudden explosive rupture (vs. the slow degeneration in non-chondrodystrophic breeds).
The short legs and elongated back that make Frenchies look like Frenchies come from the same genetic mutation that destroys their discs.
The numbers (Dog Aging Project 2025, JAVMA, n=43,517)
- French Bulldogs: 8.4% lifetime prevalence — second only to Dachshunds.
- Adjusted OR 21.1 vs. mixed-breed (95% CI 12.5–35.8).
- Median diagnosis age: 4.6 years (range 2.6–6.8) — significantly younger than other high-risk breeds.
IV. Hansen Type I — The Bulldog Type
Frenchies almost exclusively get Hansen Type I extrusions — acute, explosive disc ruptures. The inner nucleus pulposus violently herniates through the outer annulus. This is the classic "fine this morning, paralyzed by lunch" presentation.
Most herniations occur in the thoracolumbar region (T11–L2) — the transition between the rib cage and the lower back.
He jumped off the couch like he had a thousand times. By dinner he couldn't move his back legs. He was in surgery that same night.
V. Symptoms by Grade
This table is here so you understand what your vet tells you — not so you can grade your Frenchie at home. The grade comes from a hands-on examination, and for the spine a neurological one. Guessing it yourself is how a serious case ends up treated like a mild one.
| Grade | Description |
|---|---|
| Grade 1 | Pain only — yelping when picked up, hunched back, reluctance to move, trembling. |
| Grade 2 | Weakness — wobbly hind end (ataxia), still walking but uncoordinated. |
| Grade 3 | Cannot walk but feels pain — non-ambulatory paraparesis, can move legs but not stand. |
| Grade 4 | Paralysed, but deep pain sensation is still present. Only a vet can establish that. |
| Grade 5 | Paralysis + NO deep pain — EMERGENCY. Only a neurological exam separates this from Grade 4. |
How it gets diagnosed
- MRI — the gold standard ($1,500–$3,500).
- CT myelogram — alternative when MRI isn't available.
VI. Treatment — Conservative or Surgical
Conservative (Grades 1–2)
- 4–6 weeks of strict crate rest.
- Vet-prescribed pain control only — never human painkillers (ibuprofen, aspirin) — your vet chooses the medication and the dose.
- Anti-inflammatories.
Surgical (Grades 3–5)
- Hemilaminectomy — the surgeon removes a window of vertebral bone and scoops out herniated disc material.
Recovery rates by grade
- Grade 3–4: ~93% recovery.
- Grade 5: ~61% with surgery vs. 10% conservative.
VII. Time and Surgery
For Grade 5 (no deep pain), earlier surgery gives better odds, and reported recovery is roughly half of dogs operated on quickly. But there is no cut-off after which it stops being worth doing: the ACVIM consensus states plainly that surgery should not be declined simply because the dog has been paralysed for a long time, and documents dogs paralysed for more than a week who walked again after surgery.
You may read that you can pinch his toes to see whether he still feels deep pain. Do not. A dog who has lost deep pain will still pull the leg back — that is a spinal reflex, and it never reaches the brain. It is the easiest thing here to misread, and the reading that feels reassuring is the one that costs the legs. Telling Grade 4 from Grade 5 is a neurological examination and it belongs to a vet. If he cannot walk, drive now.
Getting him there without making it worse. You do not know why he is down. In this breed a disc is the most likely cause, but a fracture, a spinal stroke or a tumour look the same from where you are standing — and the way of moving him that is safe for one is safe for all of them. So handle him as though the spine is unstable, because you cannot rule it out.
- Do not let him walk, jump or take stairs — and do not “help him walk”.
- Move him as little as you can, and keep him in the position you found him in.
- Slide him onto something rigid instead of lifting and cradling him — a board, a baking tray, a shelf that lifts out, the base of a hard crate. A blanket on its own sags, and a sagging back is a bending back.
- Support the head and neck as well, not only the body.
- Stop him rolling: a rolled towel down each side, or straps over a blanket. Never put tape on his skin.
- Keep him warm and quiet. Two people if there are two of you.
- Drive smoothly, and call ahead so they are ready.
VIII. Cost Reality (2025–2026)
Total: $5,000–$12,000 USD typical.
- MRI: $1,500–$3,500.
- Surgery + anesthesia + monitoring: $3,500–$5,000+.
- Hospitalization + post-op: $5,000–$8,000 average.
- Specialty hospitals / emergency: $10,000+.
IX. Prevention — Daily Habits
- No jumping off couches or beds — install ramps.
- No stairs — carry or use baby gates.
- Harness only, never a collar (neck pressure transfers to the spine).
- Weight management — every extra pound multiplies spinal load.
- Non-slip surfaces — rugs over hardwood and tile.
- Orthopedic memory foam bed for support.
X. Crate Rest Reality
4–6 weeks of strict crate rest is the make-or-break of recovery, whether the dog had surgery or not.
Owner consensus: it's harder than the surgery itself, emotionally. The crate must be small enough that the dog cannot turn or play (~3×4 ft for an average Frenchie). Bathroom breaks: 5–10 minutes maximum, leashed and harnessed.
Owners report this is the loneliest, most heartbreaking part — but breaking crate rest restarts the recovery clock.
References
- Dog Aging Project IVDD prevalence (JAVMA 2025). AVMA Journals
- Recurrence rate IVDD in surgically treated Frenchies. PMC9893528
- Paraplegic deep-pain-negative Frenchies. PMC10170243
- Current Approaches to Acute Thoracolumbar Disc Extrusion. Frontiers in Veterinary Science
- Southeast Veterinary Neurology — French Bulldog IVDD. SEVneurology.com
