Allergies: They’re the top cause of hair loss. Like people, your cat can be allergic to food, insect bites, medicines, dust, or pollen. To ease the itch, she’ll lick her fur until there are bald spots.
https://pets.webmd.com/cats/diseases-hair-loss-cats
In addition to the visible hair loss, the cat may display a few additional symptoms which may include: 1  Bumps on the skin, caused by allergies. 2  Skin swelling. 3  Scratching, licking and chewing. 4  Sneezing, due to inhalant allergies. 5  Melanomas on the skin. 6  Dry, flaky skin, which can be caused by allergies or a poor diet.
http://www.vetinfo.com/cat-hair-loss-on-tail.html
But if she loses a lot of hair, there might be a problem. Does she constantly scratch or lick herself? Cats groom themselves a lot (up to half of the time they’re awake). Too much can cause hair loss, skin sores, and infection. If your cat seems more interested in licking her fur than other activities like playing or eating, that’s a red flag. Your cat could lose her fur because: She was born with a harmless skin condition. It’s a side effect of an easy-to-treat condition. She’s sick. The Most Common Reasons
https://pets.webmd.com/cats/diseases-hair-loss-cats
Detecting the underlying problem and applying suitable treatment will solve the hair loss problem. 1  The treatment for the underlying condition may be: 2  Flea elimination products. 3  Allergy treatment (drugs or allergy shots) 4  A change in diet. 5  A change in medication. 6  Antibiotics for skin infections.
http://www.vetinfo.com/cat-hair-loss-on-tail.html
Treat her wounds, and ask your vet if she needs an antidepressant or changes in her environment, like putting up high perches or keeping dogs away. Pain: Cats with arthritis may lick themselves at the site of the pain. Rare Causes. Pure breeds, like Himalayans and Bengals, are more likely to have genes that cause hair loss.
https://pets.webmd.com/cats/diseases-hair-loss-cats
If you notice hair loss on your cat's ears, don't hesitate to take him to your vet. The quicker the cause is diagnosed, the more easily it is treated, and you can prevent the problem from getting completely out of hand. In many cases, the hair on your cat's ears will eventually grow back.
http://cats.lovetoknow.com/Cat_Hair_Loss_on_Ears
Other possible causes of hair loss on tail may include: 1  Skin infections. 2  Hormonal dysfunction, causing sebum overproduction. 3  Cushing’s disease. 4  Skin cancer. 5  Certain drugs. 6  Poor diet. 7  Alopecia, a rare inherited disease. 8  Poor grooming habits, which may be due to obesity and the inability of the cat to clean his tail.
http://www.vetinfo.com/cat-hair-loss-on-tail.html
Hereditary Hair Loss . In cases of hereditary hair loss, there is no underlying cause except for a transfer of genetics, so bald patches do not exhibit any irritation and don't seem to bother an affected cat at all. There is no course of treatment to stop the loss or encourage hair to grow again once it has been lost. According to ProVet Health Care, some breeds of cats prone to hereditary hair loss include: Birman ; Burmese ; Devon Rex ; Siamese ; Acquired Hair Loss . Acquired hair loss is typically a sign of other conditions in play that cause itching.
http://cats.lovetoknow.com/Cat_Hair_Loss_on_Ears
Facial Alopecia is considered normal hair loss that occurs on the head between the eyes and ears. This type of hair loss appears to be more prominent in cats that have dark, short hair. Since it's considered normal, there's no treatment for it unless you see other signs of a skin condition that might actually be the cause of the hair loss.
http://cats.lovetoknow.com/Cat_Hair_Loss_on_Ears
If you detect any bald spots on the cat’s body or tail, this can be a signal your pet is affected by a medical condition. The most common cause of hair loss on tail in cats is the presence of fleas. Fleas irritate the skin and the tail, so the cat will chew and bite the tail, having access to his tail. Stress is another factor that can cause hair loss, as the cat can chew on his tail to relieve stress. Stress can be caused by various changes or events that the cat cannot adapt to. Allergies can cause skin irritation and itchiness and the cat may lick and chew his tail to reduce the discomfort. Other possible causes of hair loss on tail may include: Skin infections; Hormonal dysfunction, causing sebum overproduction; Cushing’s disease
http://www.vetinfo.com/cat-hair-loss-on-tail.html
why is my cat losing hair near her tail
Your cat losing hair near her tail because allergies can cause skin irritation and itchining and cat may lick and chew his tail to reduce the discomfort and causes of hair loss on tail is Skin infections, Hormonal dysfunction, causing sebum overproduction, Cushing’s disease. Skin infections; Hormonal dysfunction, causing sebum overproduction, cushing’s disease my cause cats to loose hair near her tail.