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Old Age
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The great majority of dogs developing lipomas are middle aged and older pets. Lipomas indeed are a normal part of the aging process in a similar fashion as wrinkles are in humans, according to Janet Tobiassen Crosby, a small animal veterinarian, and Theresa A. Fuess. However, lipomas occasionally will appear on younger dogs.
Obesity
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Dogs developing lipomas are often obese. Veterinarians suspect that fatty lumps may be due to a diet rich in carbohydrates. An accumulation of fatty tissues appears to be a contributing factor in the development of lipomas, which may explain why overweight dogs are predisposed to this condition, according to Vetinfo, a resource for veterinary information.
Breed Predisposition
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Certain breeds appear more likely to develop lipomas. Cocker spaniels, dachshunds, poodles and terriers are some breeds known to be predisposed to developing fatty tumors, writes Becky Lundgren, veterinarian and contributor for Veterinary Partner. However, lipomas can occur in any breed.
Genetic Predisposition
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There appears to be a genetic predisposition for certain dogs to develop lipomas. For example, Roger L. Welton, veterinarian and president of Maybeck Animal Hospital in Melbourne, Fla., notes instances of multiple litter mates often developing lipomas.
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What Are the Causes of Lipomas in Dogs?
Lipomas are benign fatty tumors typically found under the dog's skin. While any dog can be affected, certain dogs are more predisposed. While the cause for the development of lipomas is still misunderstood, a few causes appear to make their appearance more likely. Understanding what may cause the eruption of such tumors may help dog owners better understand this condition. Always consult an experienced veterinarian should you notice any unusual lumps or bumps on your dog.