Dog Hair Loss & Bald Patches
Thinning coat, bald spots, or patchy hair loss — often allergies or parasites, but endocrine disease is also possible.
Causes
8
Red flags
5
Prone breeds
9
Related
3
Good fit for telehealth
Itchy hair loss often fits allergy or skin-infection triage. Symmetrical, non-itchy hair loss or hair loss with weight, thirst, or behavior changes should be evaluated in person for endocrine disease.
When to call the vet now
Any of these signs means telehealth isn't enough — get in-person vet care today.
- ×rapidly spreading bald patches
- ×red, crusty, smelly, or painful skin
- ×circular lesions that could be ringworm
- ×hair loss plus increased thirst, weight gain, or lethargy
- ×puppies or immunocompromised dogs
Common causes
- —allergies with scratching or licking
- —flea allergy dermatitis
- —mange mites
- —ringworm
- —bacterial or yeast skin infection
- —hypothyroidism
- —Cushing's disease
- —seasonal or breed-linked alopecia
Breeds most prone to hair loss & bald patches
Not exhaustive — any dog can have this. These breeds are just more commonly affected.
French Bulldog
small · Top 10 AKC breed
Bulldog (English)
medium · Top 10 AKC breed
Boxer
large · Popular AKC breed
West Highland White Terrier
small · Popular AKC breed
Bichon Frise
small · Popular AKC breed
Siberian Husky
medium · Popular AKC breed
Akita
large · Popular AKC breed
Alaskan Malamute
large · Popular AKC breed
Chow Chow
medium · Popular AKC breed
Take the 2-minute itch triage quiz
Get a personalized triage based on your dog's specific symptoms, breed, and history.
What can help
Products and services matched to this symptom.
Dutch
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- —Unlimited vet chats
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- —$11/month
- —Covers anxiety, allergies, derm
Vetster
Book online vet appointments with licensed professionals
- —Licensed vets online
- —24/7 appointment access
- —Video, chat, and voice
- —Prescription support where permitted
Zesty Paws Allergy & Immune
Seasonal allergy + immune support chews
- —NASC Quality Seal
- —Seasonal allergy support
- —Salmon oil for skin
- —Chewable, dogs love them
Related symptoms
Searchbreed is not a veterinary service and does not diagnose or prescribe. This is educational content to help you understand your dog's symptoms. For diagnosis and treatment, talk to a licensed vet.