Dog care guide

Mange in Dogs: Symptoms, Types, and Treatment

Updated April 25, 2024 • 7 min read
Dog with skin condition
Amy Shojai
Written by — Certified Animal Behavior Consultant (CABC)
Updated: June 18, 2026
⚡ Quick Answer

The two types of mange require completely different approaches: sarcoptic mange (scabies) is highly contagious to other pets and even humans, causing intense itching, and demodectic mange usually appears when a dog's immune system is compromised or in puppies whose immune systems are still developing, and is not typically contagious. A vet must perform a skin scraping under a microscope to tell them apart — guessing based on symptoms alone leads to ineffective treatment. Both types are treatable, but demodectic mange in adult dogs sometimes signals an underlying health issue worth investigating, since it shouldn't normally appear in a dog with a healthy immune system.

In This Guide
  1. Types of Mange
  2. Recognizing Symptoms
  3. Diagnosis Process
  4. Treatment Approaches
  5. Home Care and Prevention

Mange is a skin disease caused by mites. It can cause serious discomfort, hair loss, and skin damage if left untreated — persistent discomfort can also manifest as behavioral changes resembling fear or anxiety.

Types of Mange

Sarcoptic mange is highly contagious and causes severe itching. Demodectic mange usually appears when the immune system is weakened.

Recognizing Symptoms

Watch for scratching, hair loss, red skin, crusts, sores, odor, and irritated patches.

Diagnosis Process

Veterinarians diagnose mange using skin scrapings and microscopic examination.

Treatment Approaches

Treatment may include prescription antiparasitic medicine, medicated baths, antibiotics for infections, and cleaning the environment.

Home Care and Prevention

Wash bedding, clean grooming tools, maintain good nutrition, and keep up with regular vet care.

What are the signs of mange in dogs?+
Common signs include itching, hair loss, inflamed skin, and crusty lesions.
Is mange contagious to humans?+
Sarcoptic mange may temporarily irritate humans. Demodectic mange does not spread to humans.
How is mange treated?+
Veterinary treatment often includes prescription antiparasitic medication.
📚 Trusted Resources: For further reading and clinical guidance, we recommend the American Veterinary Medical Association (AVMA), the American Kennel Club (AKC), and VCA Animal Hospitals.