16+ My Dog Has Patches Of Hair Missing Images. Glass, thorns, even a dog's own coarse hair can all cause inflammation and bald spots if they lodge in your dog's skin. Hair loss can also occurs when there is a disruption in the growth of hair follicles, often from infection, trauma, an immune disease, or endocrine system abnormalities.
This type of hair loss occurs when a dog's skin has an adverse reaction to sunlight, resulting in hair loss and sometimes a reddening of the skin in the affected area.
How much shedding is normal depends on breed, time of year, and environment. Bacterial or fungal infections, such as in the case of ringworm (which is actually a fungus), can also be attributed to hair loss in dogs. If you have a dog losing hair at home, you may wonder why and if you need to seek a dog hair loss treatment. Hair loss might also be focused on a specific region or generalized across your dog's whole body.