When to go to the ER now vs. wait until morning

Use these objective signs to decide quickly — and what to do while you head in or monitor at home.

Reviewed by the Happy Tails Veterinary Team
Updated Aug 21, 2025

Go now: ER red flags

  • Breathing trouble, blue/pale gums, collapse, seizures
  • Uncontrolled bleeding, major trauma, car accident, bite wounds
  • Bloated, hard, or very painful abdomen; nonstop retching
  • Toxin ingestion (chocolate baking/cocoa, xylitol, grapes/raisins, meds, lilies in cats)
  • Urinary blockage signs: repeated straining with little/no urine (especially male cats)
  • Heatstroke signs: excessive panting, weakness, vomiting, high temperature
  • Any rapidly worsening condition or extreme pain

Okay to wait and monitor (usually)

  • Mild vomiting or diarrhea fewer than 3 times, otherwise bright and hydrated
  • Soft tissue limping without severe pain or swelling
  • Mild eye redness with no squinting or discharge increase
  • Itching or minor skin rash without open wounds or ear discharge
  • Appetite slightly decreased but drinking and peeing normally

If your pet is very young, senior, or has chronic disease (diabetes, heart/kidney disease), lean toward earlier in‑person care.

Safe home steps (while you monitor)

  1. Create a calm space; limit activity. Offer small, frequent water access.
  2. For mild GI upset, withhold food 6–8 hours (not water), then bland diet in small portions.
  3. Avoid human meds unless a vet advises. Some are toxic to pets.
  4. Reassess every 2–3 hours. If symptoms worsen or red flags appear, go in immediately.

What to bring and what your vet will ask

  • Timeline of symptoms and any photos/videos
  • Medications/supplements and any possible toxins accessed
  • Recent diet changes, treats, or new chews
  • Normal habits: appetite, water intake, urination/defecation

Costs and time

ER visits vary by region and severity. Expect triage on arrival. If you’re unsure, a quick TeleVet triage can help you decide and prepare, potentially saving time and unnecessary travel.

Chat with a vet now

Average wait ~2 minutes • We’ll tell you if in‑person care is needed now

FAQ

My pet ate something but seems fine — still go in?

Some toxins act slowly. Call a vet with the item, brand, and amount. We can advise on decontamination windows and whether ER care is needed.

Can I wait until my regular vet opens?

If no red flags and your pet is stable and comfortable, monitoring may be reasonable. If anything worsens overnight, choose the ER.

What if my cat is straining in the litter box?

Male cats can develop life‑threatening urinary blockages. Straining with little to no urine is an emergency — go in immediately.

Still unsure? We’ll help you decide.

Talk to a licensed vet now. We’ll assess urgency and map the safest next steps.