In addition to all the other common conditions, other dog's skin issues exist.
Conditions by age
This list is not exhaustive but will consider the most common.
- dog mange, demodicosis
Adults and seniors
- hormonal imbalance as Cushing's disease (hyperadrenocorticism)
- immune-mediated disease as pemphigus
- skin tumors and cancer
Signs can be the same for different causes and diseases. That's why it's essential to visit your vet. He may do some complementary exams as skin scraping, cytology, skin puncture or biopsy to define the good diagnosis.
Whatever the skin disease, when caught early, it is always easier to treat. Consider regular visits to the veterinarian.