Cats can suffer from a variety of ailments, and some are more common than others. Here is a list of common diseases in cats:

1. Chronic kidney disease (CKD)
This disease is especially common in older cats. It affects the functioning of the kidneys and leads to a deterioration in the process of filtering toxins from the blood.
2. Diabetes
Like humans, cats can develop diabetes, especially if they are overweight. Signs include frequent urination, increased thirst and weight loss.
3. Dental problems
Gingivitis, calculus and sensitive teeth are common problems in cats. These problems may cause pain and affect appetite.
4. The FIV virus (feline immunosuppressed syndrome)
This disease is contagious and is caused by a virus that damages the immune system. Cats with FIV are more prone to other diseases.

5. The FELV virus (the feline leukemia virus)
This disease also damages the immune system and can cause other diseases. Cats with FELV may show symptoms such as fever, weight loss and lethargy.
6. The Mycoplasma bacterium
This bacteria can cause inflammation of the respiratory tract and other health problems. Cats may show signs of difficulty breathing.
7. Urinary tract infection
Can be caused by a variety of reasons, including infections, urinary tract stones or stress. Cats with a urinary tract infection may show signs such as discomfort while urinating.
8. Allergies
Cats can develop allergies to food, cleaning agents, fleas or environmental allergens. Symptoms include itching, rashes or vomiting.

9. Skin problems
Problems such as dermatitis, psoriasis or parasites (such as fleas) are common in cats and can cause great discomfort.
10. Intestinal inflammation
Inflammatory bowel disease (IBD) can cause vomiting, diarrhea and discomfort. Contact a veterinarian for diagnosis and treatment.
The importance of visiting the vet
If you see any unusual signs in your cat, such as loss of appetite, weight loss, vomiting, or behavioral problems, it is important to contact your veterinarian as soon as possible. Early treatment can improve the cat's quality of life and prevent deterioration in its condition.