A cat that walks like a plank for the first 10 minutes after a nap and loosens up by breakfast has a real problem. Cats hide lameness by shortening the stride, so the first sign is a missed jump. Four clocks decide the day. Back legs dragging, a limb that is cold and pulseless, or a scream when lifted means 30 minutes. A cat that walks but cannot lift its tail, or leaks urine, means 6 hours. Stiffness over 30 minutes a day for 14 days means 72 hours. A cat merely slower on the stairs gets a 4-week score sheet.
Four time lines: 30 minutes, 6 hours, 72 hours, 4 weeks
The 30-minute line is vascular or spinal until proven otherwise. A cold, blue back foot with breathing at 60 a minute is a thromboembolism; a scream on landing from a 60 cm windowsill followed by 1 dragging leg is a disc or a fracture. Both lose function by the hour.
The 6-hour line is a dropped tail for 3 days, crying in the box, or 39.5 C with 2 swollen joints. The 72-hour line is stiffness over 30 minutes for 14 days, or a cat that stopped jumping onto a 45 cm bed. The 4-week line belongs to the slow but stable cat: a stiff older cat often has 2 problems, and the score shows which one moved.
Three cause groups behind a stiff morning
| Tier | Cause group | Typical clue | Vet within | Stiffness after rising | Log items |
|---|---|---|---|---|---|
| 1 | Joint disease (DJD) | 8-14 years, elbow and hip, 3-second rise becomes 20 seconds | 72 h | 5-20 min | 4 |
| 2 | Spine and nerve | 4-10 years, scream after a jump, tail down 3 days | 6-24 h | 20-45 min | 5 |
| 3 | Muscle and metabolic | 1-15 years, 6.5 kg, potassium under 3.0, T4 over 60 | 24-72 h | 30-60 min | 6 |
| 4 | Emergency | Cold back foot, no pulse, breathing 60, 1 leg dragging | 30 min | 45-120 min | 7 |
Joints. Degenerative joint disease favours the elbow, hip, knee and tarsus, and shows up as a 3-second stand becoming 20 seconds and a 60 cm jump dropping to 25 cm. On a 5 kg cat, 0.5 kg is 10 percent of body weight, and every gram comes off the same 4 joints.
Spine and nerve. Spondylosis, disc extrusion, cauda equina disease and diabetic neuropathy all start at the rear end. Diabetic neuropathy has a signature: the cat stands on its hocks, heel down, like a rabbit. A disc is sudden, worse after a jump, and no better after 10 minutes of walking.
Muscle and metabolic. Potassium under 3.0 mmol/L gives a stiff, low-necked gait that improves within 24 to 48 hours of treatment. A T4 over 60 nmol/L means weight loss, an unkempt coat and wasting. A 39.5 C fever with 2 swollen joints points to immune-mediated arthritis.
The 5-minute warm-up, minute by minute
Five minutes of heat and slow range of motion before the first meal is safe for arthritis and for most diagnosed spinal cases.
- Minute 1: hand-hot towel on the lower back and both knees, 30 seconds each, 4 spots.
- Minute 2: shoulder, elbow, hip, knee and hock, 5 slow flexions each, 2 seconds at each end range.
- Minute 3: 20 slow steps on a non-slip mat, 20 cm stride, no turn tighter than 1 metre.
- Minute 4: 3 straight walks of 3 metres, 10 seconds of rest between them.
- Minute 5: 3 step-ups onto a 5 cm book, or 3 slow 15-second paw lifts.
Time the rise before and after on a phone stopwatch. A drop of 2 seconds means joint and load; no change or worse means the problem is above the joint, so stop and book an exam.
The 4-week score: 4 numbers, same day each week
Once a week, same weekday, before food and before pain relief: 4 items at 0 to 2 points, plus 2 points if stiffness passes 30 minutes, for a 0 to 10 total.
| Week | Rise (sec) | Walk 5 m (sec) | Jump (cm) | Stiffness (min) | Total 0-10 |
|---|---|---|---|---|---|
| 1 | 12 | 9.0 | 30 | 25 | 6 |
| 2 | 11 | 9.0 | 30 | 22 | 5 |
| 3 | 10 | 8.5 | 35 | 18 | 4 |
| 4 | 10 | 8.0 | 45 | 15 | 3 |
| Target | 8 | 7.0 | 45 | 10 | 2 |
Read the trend. Plus 2 points over 4 weeks, or 2 extra seconds on the rise, means imaging within 7 days. A flat total in a cat that will not jump means pain is controlled at rest but not under load.
What to log at home
- Rise time in seconds, 3 mornings a week, before the cat eats.
- Morning stiffness in minutes, from first step to a normal walk.
- Jump height, stickers at 30, 45 and 60 cm on the usual furniture.
- Stairs: how many of the 12 steps the cat takes before stopping.
- Brushing: 3 seconds along the spine is the test; a flinch is data.
- Food in grams and urine outside the box, counted daily.
- Weight every 2 weeks; 200 g on a 5 kg cat is 4 percent.
The 2 checks worth paying for
Check 1 is the orthopaedic and neurologic exam: range of motion in 6 joints, a feel along the spine, tail and perineal reflexes, and a thigh circumference measured on both sides. Write the number down; a 5 mm difference, or a 5 mm loss over 8 weeks, is wasting you can chart early. Check 2 is 2 X-ray views, lateral and ventrodorsal, plus T4, potassium, CK and glucose.
Four things not to do on the way
Do not give a human painkiller. One tablet of a common anti-inflammatory, or a paracetamol-type pill, can be fatal in a cat; halving it does not make it safe. Do not stretch the leg out. A cat with a disc or a clot gets worse with traction, and 3 cm of extra range is not worth it. Do not massage the spine. Pressure on a painful segment 30 minutes before an exam changes the neurologic picture the vet has to grade. Do not walk the cat up stairs to warm it up. Twelve steps at 15 cm is 1.8 m of climbing, and 3 flights before a 09:00 appointment can leave it non-weight-bearing.
Make the house 30 percent easier
Cut the litter box lip to 10 cm, or an 8 cm doorway in the side. Put a 30-degree ramp, not stairs, onto the 45 cm bed. Raise food bowls 5 cm. Lay 3 non-slip mats on the slick runs. Keep the room at 22 to 24 C, because a 12 C floor stiffens a sore joint in 10 minutes. A 5 kg cat needs about 250 kcal a day, and 10 percent less is 0.5 kg over 6 months.
Five steps for this month
- Time the rise 3 mornings this week and write the seconds down.
- Sticker the furniture at 30, 45 and 60 cm and record the highest jump.
- Start the 5-minute warm-up before the first meal, every day.
- Score all 4 numbers on the same weekday for 4 weeks.
- Book the exam and 2 X-ray views if the total climbs 2 points.
If the stiffness comes with 3 mornings of vomiting before food, compare it with morning vomiting in cats, which uses the same 4-week log. If a plant or a pill entered the picture, run the label through the toxin checker first, because a low-grade exposure can present as a stiff cat for 48 hours.
Terms mentioned in this article
Frequently asked
Is morning stiffness in an old cat just normal aging?
No. A cat that needs 20 seconds to stand, jumps 25 cm instead of 60 cm and refuses brushing along the spine is guarding joints, usually the elbow, hip or knee. Cats shorten the stride instead of limping, so stiffness is the visible stage of a problem that has been running for months. Two X-ray views and a thigh measurement settle it in one visit.
How do I run the 5-minute warm-up safely?
Warm towel on the lower back and both knees for 30 seconds each, then 5 slow flexions of the shoulder, elbow, hip, knee and hock, 20 steps on a non-slip mat, 3 straight 3-metre walks and 3 step-ups onto a 5 cm book. Time the rise before and after: 2 seconds faster means joint and load related, no change means stop and book an exam.
What should the 4-week score actually measure?
Four numbers once a week, same day, before food and pain relief: rise time in seconds, time to walk 5 metres, highest jump in cm, and minutes of stiffness after rising. Add 2 points if stiffness passes 30 minutes for a 0 to 10 total. A climb of 2 points, or 2 extra seconds on the rise, means imaging within 7 days.