![]() In humans and dogs, the term is strictly used to describe an inherited predisposition to develop allergic reactions to environmental allergens (such as pollen and house dust). Atopy (atopic dermatitis dust and pollen allergy)Ītopy is not well characterised in cats. Many cats also hunt or may be fed by neighbours, which can complicate the trial as it is important that no other foods are eaten during the trial period. Your vet will advise you on the most appropriate diet to use – this might be a home-prepared diet, or your vet may suggest a special ‘hypoallergenic’ diet for the trial period. This is not simply switching one brand of cat food for another, as the ingredients are often very similar. Most of these are probably food allergies but the terms ‘food intolerance’ or ‘food-responsive’ skin disease are sometimes used as a specific diagnosis is often not made.Ĭats may need to be fed an alternative diet for a period of 6-8 weeks to rule out food-response dermatitis, and the choice of food is important. However, it is well recognised that changing the diet to a food that cats have not previously been exposed to can cure some cases of pruritic skin disease. Allergy may be involved, but in some cases, it is possible that the pruritus may result from chemical reactions to the food or to additives and preservatives. No-one knows the exact mechanisms by which certain foods can make animals and humans itch. Important causes of pruritus other than fleas include: What can cause cats to itch other than fleas? Some cats may have more than one manifestation of disease present simultaneously eg, indolent ulcer and symmetrical hair loss. ![]() All of these manifestations of pruritus look completely different, but can all be caused by the same things - in most instances the cause is fleas but other parasites and allergies can be involved. They are usually associated with allergies. Eosinophilic granuloma complex – see eosinophilic granuloma complex in cats – this is a variety of skin lesions (indolent ulcer that affects the upper lip, and eosinophilic plagues or eosinophilic granulomas that can affect various areas of the body and also the oral cavity.The skin and coat may also be greasy and have excessive dandruff ‘Miliary’ dermatitis – this form of skin disease is characterised by the presence of tiny 2-3 mm diameter crusts throughout the body surface. ![]()
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