Dr. Karen Wheeler on Instagram: "Tracheal collapse is a common respiratory condition in dogs, especially in small and toy breeds such as Yorkshire Terriers, Pomeranians, Chihuahuas, Toy Poodles, and Maltese. The trachea (windpipe) is a tube supported by C-shaped cartilage rings that keep the airway open while allowing flexibility. In tracheal collapse, these cartilage rings weaken or flatten, causing the airway to narrow. This makes it harder for air to pass in and out of the lungs. Causes and r