Short answer: clear or light brown discharge can be normal debris, but discharge that's yellow or green is more likely a sign of infection, like conjunctivitis, and worth considering a vet visit for.
What does the color of eye discharge tell me?
Clear or light brown discharge is often just natural debris, but thick discharge with a yellow or greenish tint can be a sign of bacterial infection or conjunctivitis.
What should I do about yellow discharge?
① Dampen clean gauze with saline or an eye-safe cleaning solution and gently wipe away the discharge ② Use a separate piece of gauze for each eye to avoid cross-contamination ③ If it lasts more than a day, get a vet checkup. Following this order is a good approach.
What if it's only happening in one eye?
If discharge is severe in just one eye, it could point to a localized issue like a foreign object or scratch. If it's happening in both eyes, it's worth also considering a viral infection like feline herpesvirus.
Is it concerning if my cat keeps rubbing or squinting?
Frequent eye rubbing or squinting can be a sign of pain or discomfort. If this is happening alongside the discharge, it's safer to prioritize a vet visit over home care.
When should I definitely see a vet?
If the discharge is a deep yellow or green, the eye is swollen, or your cat seems to be avoiding light, don't wait — get a vet checkup right away.