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First Week Settling
How to settle a new cat in — the realistic timeline (a heuristic, not a clinical rule) and the eating red-flag that means see a vet now.
Monitor with red flags
Watch for the specific red flags listed and escalate if they appear.
Give them time (rough guide)
EstimateMany cats loosely follow '3 days to decompress, 3 weeks to settle, 3 months to feel at home' — but this is a shelter rule of thumb, not a clinical timeline. Some need longer, some adjust faster.
First days
EstimateStart in one quiet 'base camp' room with food, water, litter, and hiding spots. Let them come to you; expand access as confidence grows. Keep routines calm and predictable.
Watch for
- Watch eating, drinking, and litter use from day one — a new cat not eating, or not passing urine/stool, is a medical concern, not just shyness.
How this was decided — 1 source
- www.aspcapro.org/resource/pet-adjustment-periods-3-days-3-we — ASPCA (ASPCApro professional resource) — T2/T4 sheltering authority, NOT a clinical body · Tier 2 · verified 2026-07-17⚠ Sources differ: n/a⚠ Commercial bias: Attribute to ASPCA/ASPCApro; do not reproduce verbatim beyond short quotes.
Rules fired: 3-3-3 as a heuristic, not a clinical rule (EV-005)