The Cymric is the 1 breed in this series whose screening starts in kittenhood, not at 12 months. A rump and tail exam belongs at 8 weeks and again at 16, a pelvic film at 4 to 6 months, an echo from 12 months, and a corneal exam every 12 months for life. The reason is arithmetic: the spinal defect behind Manx syndrome shows itself before 6 months in most affected kittens, and a cat that reaches 12 months with normal bladder and bowel control has largely cleared that gate. Everything after that is heart and eye.
Why the first exam is at 8 weeks
Three findings, 5 minutes, no sedation. First, how many free vertebrae sit behind the sacrum: a rump with 0 to 1 visible tail bones carries the highest risk of the sacrococcygeal malformation, and a full tail carries the lowest. Second, anal tone: a cotton bud touched to the anus should produce a visible squeeze. Third, perineal sensation: a pinprick between the anus and the scrotum or vulva should make the tailhead twitch, and a kitten that does not react is the one to watch. Add a bladder check by ultrasound, 40 to 90 dollars, because a bladder that never empties fully leaves a kitten dribbling rather than spraying. Repeat at 16 weeks, before the last vaccine, when the gait is easier to judge.
What the film at 4 to 6 months shows
A lateral pelvic radiograph, 120 to 300 dollars, counts sacral and coccygeal vertebrae and looks for a dorsal cleft in the sacrum. Normal cats have 3 fused sacral segments; a Cymric with 2, or with a gap, is a cat whose spinal cord may be tethered. The film does not make the diagnosis alone, and a normal film in a kitten with a weak hind end does not clear it either. If there is ataxia, a plantigrade stance, or urine scald at 5 months, the next step is a neurologist and an MRI at 800 to 1,800 dollars, not a second X-ray.
Bladder and bowel: the numbers that decide
A 4 kg cat should carry under 5 mL of urine after voiding; 15 mL or more means retention, and retention is the step before infection and stones. Owners of a high-risk kitten learn to express the bladder by hand 2 to 3 times a day, which is easier once a vet teaches the grip. Bowel: no stool for 48 hours is late, 72 hours is a problem, and a cat that has needed repeated enemas is heading for megacolon surgery at 1,200 to 3,000 dollars. Softener or prokinetic classes, by veterinary prescription only, are the usual bridge. Weigh weekly for 6 months: 100 g of missed gain in 2 weeks is the earliest objective sign.
The heart clock starts at 12 months anyway
Hypertrophic cardiomyopathy (HCM) is reported in this breed at no published rate, so evidence is limited; the tail tells you nothing about it, and a rumpy cat and a fully tailed cat get the same echo. Diastolic wall under 5 mm is normal, 5 to 5.9 mm earns a scan in 6 months, 6 mm or more meets the usual definition, and a left atrium to aorta ratio above 1.7 moves the plan that week. Then every 12 months to age 6, and every 12 months after that with blood pressure added. Budget 220 to 450 dollars a scan. A murmur is a poor filter here: a 7 mm wall can be silent, and a kitten's innocent murmur at 4 months can send an owner to a cardiologist for nothing. Urinalysis rides along from 12 months, every 12, at 40 to 90 dollars. The only genetic item worth buying is 1 swab in the cat's life, 80 to 200 dollars, and it answers a breeding question rather than a clinical one.
Corneal dystrophy: annual, cheap, rarely urgent
This is the item that looks alarming in a photograph and usually is not. A slit-lamp or even a good penlight exam shows grey-white opacities in the cornea, often in both eyes and often in the same spot on each. Most affected cats see well for years, and there is no drops regimen that clears it. What matters is the annual check, 30 to 80 dollars, plus a fluorescein stain at 20 to 40 dollars the moment the eye squints, because a dystrophic cornea ulcers more easily and an ulcer that stains green needs treatment within 24 hours. Never start a steroid eye drop on a squinting eye before the stain: steroid on an ulcer can melt the cornea in 48 hours.
4 signals for the fridge door
- Damp fur or urine smell around the back legs, or a bottom that needs washing more than once a week.
- No stool for 48 hours, or stool that comes out in hard pellets smaller than 1 cm.
- A hind-limb wobble that appears after jumping down, or knuckling of the back paws.
- Resting breaths above 30 a minute while asleep: count 30 seconds, then double it.
Hour-level thresholds
| Signal | Window (hours) | Action | Cost (USD) | Cost (CNY) |
|---|---|---|---|---|
| Straining with no urine for 6 hours | 0 | Emergency, blockage risk | 400 to 1200 | 2,880 to 8,640 |
| Hard belly, no stool for 72 hours | 6 | Same-day enema | 250 to 600 | 1,800 to 4,320 |
| Hind legs dragging or knuckling | 24 | Neuro exam within 24 hours | 150 to 400 | 1,080 to 2,880 |
| Open-mouth breathing, grey gums | 0 | Emergency room now | 300 to 900 | 2,160 to 6,480 |
| Urine scald, skin red and raw | 48 | Book skin and bladder check | 90 to 250 | 650 to 1,800 |
| Kitten refuses food for 24 hours | 6 | Call within 6 hours | 80 to 200 | 580 to 1,440 |
Row 1 and row 2 are the ones that catch owners out, because a cat that cannot urinate looks uncomfortable rather than dying for the first 6 hours.
The year in dollars
Kitten year: 2 rump exams at 60 to 120 each, 1 pelvic film at 120 to 300, 1 bladder ultrasound at 40 to 90, then the 12-month echo at 220 to 450 and a corneal exam at 30 to 80. That lands at 550 to 1,100. Adult years: exam with bloodwork 180 to 350, echo 220 to 450, urinalysis 40 to 90, eye check 30 to 80, so 470 to 970. A year with constipation and 2 enemas adds 250 to 600. Insurance runs 25 to 50 dollars a month, and any policy written after a Manx syndrome diagnosis will exclude the urinary and bowel items permanently, which is the whole argument for insuring in the first 12 weeks.
5 steps this month
- Book the 16-week rump exam even if the 8-week one was normal.
- Ask the vet to teach manual bladder expression and practise it once in the clinic.
- Start a litter box log: 1 line a day, pee and stool, 7 lines a week.
- Weigh weekly until 6 months, then monthly, same scale.
- Photograph both eyes in daylight, then read the Turkish Van screen for the cardiac protocol and the Tonkinese screen for the respiratory baseline.
Before choosing a Cymric kitten, ask for the dam's and sire's tail lengths and any history of expressing a bladder; 1 question at the breeder saves 3 years of guessing. The breed quiz puts the tail question in context.
Terms mentioned in this article
Frequently asked
Does a Cymric with a full tail still need Manx syndrome screening?
Yes. Tail length shifts the odds and does not remove the risk, so the 8-week and 16-week rump exams, the anal tone check, and the perineal sensation test apply to every kitten. A pelvic film at 4 to 6 months counts sacral segments, and a 4 kg cat should carry under 5 mL of urine after voiding. A kitten that reaches 12 months with normal bladder and bowel control has largely cleared that gate.
When does a Cymric need an echocardiogram?
One at 12 months, then every 12 months to age 6, then every 12 months with blood pressure added. Diastolic wall under 5 mm is normal, 5 to 5.9 mm earns a recheck in 6 months, and 6 mm or more meets the usual definition of hypertrophic cardiomyopathy. The tail tells you nothing about the heart: a rumpy cat and a fully tailed cat get the same scan.
Is corneal dystrophy in this breed painful or blinding?
Usually neither. Grey-white opacities in both corneas, often in the same spot on each eye, leave most cats seeing well for years, and no drop clears them. The annual check at 30 to 80 dollars matters because a dystrophic cornea ulcers more easily, and a fluorescein stain at 20 to 40 dollars is what separates a harmless opacity from an ulcer that needs treatment within 24 hours.