My cat hit her head, now one pupil is big and won't react. What to do?

You need to take Naila into a vet immediately, this is a medical emergency. I would be very concerned she has head trauma, which would cause the head tilt, blood from the nose, and the anisocoria (one pupil more dilated than the other). When anisocoria comes on suddenly, this is a medical emergency. Please take her into an ER vet clinic; if there isn't one in your area, there will be a vet on call for emergencies. The information to reach that vet is found on a clinic's answering machine or website. I hope this helps!

I would definitely take Thing into the vet asap. It could be that she has serious injured that with the hit, and there is a possibility of head trauma from the hit. Best of have her checked out right away. I hope this helps!

Head trauma is always a medical emergency. What you're describing is a sign of trauma to the brain and it is very important that Oreo be evaluated by a veterinarian ASAP. Head trauma can have negative complications including seizures.

There is nothing that can be done from home. I would recommend taking Puzzle to the veterinarian to have her evaluated. Depending on where the facial swelling is depends on what it can be from but she needs to have a vet look at her physically. Thank you for using Petco Pet Education Center, formerly Petcoach.

Yes, unequal pupil sizes can indicate trauma or neurological disease. Schedule an exam with your veterinarian today or tomorrow at the latest. Monitor for ataxia (wobbly gait), weakness, lethargy or head tilting.

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Bear. Oh no, poor girl. I'm quite worried about the breathing and unequal pupil size. The unequal pupil size is known as anisocoria, and it's a medical emergency when it happens suddenly. She really does need to see a vet now. Please take her into an ER vet clinic; if there isn't one in your area, there will be a vet on call for emergencies. The information to reach that vet is found on a clinic's answering machine or website. I hope this helps!

Hello and thank you for contacting Petco Pet Education Center, formerly Petcoach. It sounds that Aurora should be seen by your local vets as soon as possible. Dilated pupils can be a sign of pain, acute blindness, high blood pressure and more. Neck flexion is a common sign of spinal pain, muscle problems, low potassium level. Please, call your vets right away and get Aurora seen today.