1. Dental problems: Dental disease, such as gum inflammation (gingivitis) or cavities, can cause your cat to drool and have a red tongue. Check your cat's mouth for any signs of inflammation, such as redness, swelling, or bleeding.
2. Injury: If your cat has injured her mouth or tongue, it could cause drooling and redness. Look for any cuts, scrapes, or other injuries in your cat's mouth.
3. Foreign objects: Sometimes, cats can get foreign objects, such as pieces of food or toys, stuck in their mouths or throats. This can cause drooling and redness. Check your cat's mouth for any foreign objects.
4. Heatstroke: If your cat has been exposed to high temperatures, she may be experiencing heatstroke. Heatstroke can cause drooling, a red tongue, and other symptoms, such as panting, rapid breathing, and lethargy. Move your cat to a cool place and contact your veterinarian immediately.
5. Poisoning: Ingesting certain toxins, such as antifreeze, rat poison, or household cleaners, can cause drooling and a red tongue. If you think your cat may have ingested something poisonous, contact your veterinarian immediately.
6. Allergies: Some cats may have allergies to certain foods, plants, or other substances. Allergies can cause drooling, a red tongue, and other symptoms, such as sneezing, watery eyes, and skin irritation. If you think your cat may have allergies, talk to your veterinarian.
7. Infections: Certain infections, such as stomatitis (inflammation of the mouth) and upper respiratory infections, can cause drooling and a red tongue. If you think your cat may have an infection, contact your veterinarian.
It's important to note that drooling and a red tongue can be signs of a serious medical condition. If your cat is showing these symptoms, it's important to take her to the veterinarian for diagnosis and treatment.