Cool Dog Losing Hair With Scabs References. Web a dog losing hair for reasons besides shedding is not normal. That hair loss can occur with or without skin lesions (abnormally appearing skin).
Web the primary causes of patchy hair loss and scabs in dogs can range from parasitic infestations (such as fleas and mites), allergies (food or environmental), fungal or bacterial infections, hormonal imbalances, to stress and poor nutrition. Web the most common sign of bacterial pyoderma is excessive scaling. Flea allergy dermatitis (fad) 2.
