Symptoms of fungal skin disease in dogs:

1. Dogs suffering from fungal skin disease will show oval ringworm spots, itching, hair loss, and knots in the affected area. Symptoms such as scabs and dandruff.

2. Increased dandruff on the skin surface, accompanied by symptoms such as skin thickening, hair loss, and itching.

3. When the dog's condition develops to an advanced stage, ulcers will form and skin pigmentation will appear.

There are several common skin diseases in dogs:

1. Eczema

Eczema develops very quickly and spreads very quickly. Eczema is mostly caused by dogs scratching the same area over and over again. Especially when the weather is hot and muggy, it is easy to develop eczema when the dog scratches the skin. Owners should try to avoid infection of their dog's skin and keep it dry.

2. Scabies

It is a contagious skin disease caused by scabies mites and is accompanied by severe itching and eczema-like changes. The main clinical features are severe itching, hair loss and eczematous dermatitis.

3. Mites

Mites are also a common skin disease in bulldogs. In fact, most dogs are born with mites, and cross-breed dogs are no exception. The problem arises when the dog's immunity to the mites decreases and the mites are unable to be suppressed.