Healthy dogs exhibit several outward signs indicating their well-being, including a sleek and shiny coat, alertness, high energy levels, clear and bright eyes, and an upright posture. They also have healthy skin and gums, easy breathing with good lung capacity, strong muscles, and a robust immune system that resists diseases. These characteristics collectively indicate a dog's good health and vitality.
Dog Immune System
1 min read
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4 November 2025
Healthy dogs are usually alert, curious about their environment and have a good appetite.
Outward Signs
Although the immune system generally functions on the inside, there are some outward signs that indicate robust good health:
• Sleek, shiny coat
• Active and energetic
• Clear, bright eyes
• Alert posture
• Normally healthy skin; supple skin
• Healthy gums
• Good lung capacity; easy breathing
• Strong muscles, healthy lungs
• Resistance to disease
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