Updated On September 23rd, 2025
My French mastiff is 9 months old losing massive amounts of hair. He is bald in spots now what can I do what is it? Please suggest medicine or food diet for him
1 Answer
Published on May 19th, 2017
Causes of hair loss could include external parasites such as fleas and mange mites, and allergies (we can have allergies to food or things in the environment such as pollen/grass/dust) and sometimes infections of the skin with bacteria or yeast. I would recommend a visit with your vet to have a skin scrape done to be sure we don't have mange mites present that need treatment. I would start a flea preventative such as Advantage (available over the counter) or your vet also has prescription medication for this issue. You can also refer to this article for ideas on how to manage him until your vet is able to examine him: https://www.petcoach.co/article/5-things-you-can-do-at-home-to-keep-your-dog-s-allergies-at-bay-t/
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