Here's why:
* Pressure on the trachea: Some harnesses, especially those that cinch tightly around the neck or chest, can put pressure on the dog's trachea (windpipe). This can make it harder for them to breathe, especially if the harness is too tight or the dog is pulling.
* Restriction of the chest: Some harnesses restrict the expansion of the chest, which is essential for proper breathing. This is particularly problematic for dogs with brachycephalic (flat-faced) breeds, who already have breathing difficulties.
* Increased risk of collapsing trachea: While this is more likely with collars, even some harnesses can contribute to a collapsing trachea in predisposed dogs.
Signs of breathing problems from a harness:
* Difficulty breathing
* Gagging or coughing
* Wheezing or gasping
* Increased respiratory rate
* Blue or purple gums
Safe harness choices:
* H-shaped harnesses: Distribute weight evenly and reduce pressure on the trachea.
* Front-clip harnesses: Discourage pulling and reduce pressure on the neck.
* Back-clip harnesses: Can be safer than front-clip harnesses for dogs with sensitive necks.
Tips for safe harness use:
* Choose the right size: The harness should fit snugly but not tightly.
* Avoid harnesses that cinch too tightly: The harness should not constrict the dog's breathing.
* Avoid harnesses that put pressure on the trachea: Look for harnesses that distribute weight evenly.
* Monitor your dog for signs of breathing problems: If you notice any difficulties, remove the harness immediately.
Always consult with your veterinarian if you have concerns about your dog's breathing. They can help you choose the safest and most comfortable harness for your dog's specific needs.