Straining when urinating, frequent trips to the litter box, urine outside, or blood may indicate cystitis/obstruction. Males with urinary obstruction: emergency. Don't wait.
What to do now.If he doesn't urinate, screams at the litter box or is lethargic: emergencies now. Related:health cats
Definition (guideline)
Reference:iCatCare; AVMA — cats
Feline lower urinary tract syndrome and other causes; only the vet differentiates.
Triage by duration, frequency and condition
- Species:cat.
- An isolated episode in an active animal ≠ repeated signs, blood, pain or lethargy.
- Puppies/kittens, seniors and animals with chronic illness: lower threshold.
Warning signs — go
- Inability to urinate, pain, vomiting, lethargy (obstruction).
What not to do
- Not human anti-inflammatories. Don't "wait until Monday" if you don't urinate.
What to bring to the consultation
- Sandbox photos, diet, recent stress.
Based on reference sources.Editorial criteria anchored to reference sources (Merck, AVMA, ASPCA or others cited). It does not replace in-person veterinary care. No operative doses no source of the case.
Frequently asked questions
Can I medicate at home
Do not use human drugs or viral tips without veterinary indication.
Do you wait "to see if it goes away?"
Not if there is alarm, suspected toxicity or high-risk animal.
Does this replace a veterinarian?
No.
Sources
- International Cat Care — advice hub icatcare.org· consulted 2026-08-07
- Merck — Feline lower urinary tract disease www.merckvetmanual.com· consulted 2026-08-07
