Congratulations! You and your family are about to adopt a small dog. You've researched everything, from the best toys for small pups to how to take your pooch on vacation. You should also be aware of some of the most common small dog health problems. As a caring pet parent, you want to be prepared for all the happy, playful times, while also knowing what to expect if anything were to go wrong.

Of course, just because some health problems are common for small dogs, it doesn't mean your new family member will experience them. Read on to learn about five common health problems that small dogs may face.

1. Tracheal Collapse

The trachea, often referred to as the windpipe, is composed of small rings of cartilage with a thin membrane of tissue making up the upper surface. Tracheal collapse is a chronic, progressive condition where the cartilage rings lose some of their rigidity and the upper tissue membrane begins to sag.  This condition can make it difficult to breathe. 

Most dogs who experience this are of middle age or older, though occasionally, some young dogs may have tracheal problems. The most common sign of this problem is a dry, harsh cough that is sometimes referred to as a “goose honk” cough.   It tends to be worse at night, with excitement or if a collar is pulling on their neck.   If your dog is coughing, it is important to bring them to your veterinarian to determine if tracheal collapse is the cause of the cough and get recommendations on what can help.

2. Patellar Luxation

The American College of Veterinary Surgeons reports that patellar luxation (a displaced kneecap) is the most common orthopedic condition for small dogs and can even be seen in puppies.  While this problem is most commonly seen in small breeds, it can be seen in larger breeds as well.  Some of the most commonly affected breeds are miniature poodles, Chihuahuas, Boston and Yorkshire terriers and Pomeranians.

Dogs with this condition may show no to very few signs but most dogs will carry up their affected limb for a few steps or “skip” and then shake the leg prior to using it again.   This lameness generally becomes more frequent as the condition progresses and arthritis can develop.   Treatment can vary depending on the severity with surgery being recommended in more severe cases.   If you notice your dog limping or “skipping” your veterinarian should evaluate your dog and provide you with the best management options. 

3. Mitral Valve Disease

One of the serious small dog health problems takes place in the heart.  During the aging process, the valves of the heart may not work as effectively and begin to “wear out” and can leak.  When one of the major valves on the left side of the heart leaks, it is called mitral valve insufficiency or mitral regurgitation.   When this happens, your vet will hear a heart murmur when they listen to the heart with their stethoscope.  

According to the American Kennel Club Canine Health Foundation (AKCCHF), many dogs with the disease will not even show signs, but that pups with severe mitral valve problems can be at risk for congestive heart failure. The signs of congestive heart failure include difficulty breathing, breathing faster than normal, poor appetite, exercise intolerance, lethargy and collapse.

Unfortunately, there are no preventative methods that will help avoid this condition but regular checkups with your veterinarian can help catch this problem and provide you with a plan for monitoring and care.