Shih Tzu owners often notice their dog shaking or trembling, which can be alarming. The most important thing to understand is that while occasional mild shaking can be normal for this breed, persistent or severe tremors may signal an underlying health issue.
Our editorial team has researched the common reasons why Shih Tzus shake, from their unique anatomy and temperament to specific health conditions. This guide will help you distinguish between harmless shivers and signs that require veterinary attention.
Normal Shaking in Shih Tzus: Cold and Excitement
Shih Tzus have a single coat of hair rather than a double coat, which provides less insulation against cold weather. Their small size and low body fat also make them prone to feeling chilly. If your Shih Tzu shivers after a bath, when going outside in cool weather, or in an air conditioned room, it is likely just trying to warm up.
Excitement or anticipation can also cause trembling. Many Shih Tzus shake when they see a leash, hear a treat bag, or greet a favorite person. This is a normal emotional response and usually stops once the excitement passes.
Anxiety and Stress: Common Triggers in Shih Tzus
Shih Tzus are companion dogs bred to be close to their humans, so they can be prone to separation anxiety. Shaking is a common sign of stress in this breed, along with whining, pacing, or hiding. Loud noises like thunderstorms or fireworks can also cause trembling.
Changes in routine, new environments, or unfamiliar people may trigger anxiety. Providing a safe space and maintaining a consistent schedule can help reduce stress related shaking.
- Watch for other signs of anxiety like excessive licking or yawning.
- Consider calming aids like a cozy bed or pheromone diffuser.
Brachycephalic Syndrome and Breathing Difficulties
Shih Tzus are a brachycephalic breed, meaning they have a flat face and shortened airways. This can lead to breathing difficulties, especially in hot or humid weather, after exercise, or when overweight. When a Shih Tzu struggles to breathe, it may shake or tremble as a result of oxygen deprivation or stress.
If your dog shakes accompanied by loud snoring, gagging, or blue tinged gums, seek veterinary help. Keeping your Shih Tzu at a healthy weight and avoiding strenuous activity in heat can reduce episodes.
Hypoglycemia: Low Blood Sugar in Toy Breeds
Shih Tzus, especially puppies and small adults, are susceptible to hypoglycemia or low blood sugar. This can cause shaking, lethargy, weakness, and even collapse. Skipping a meal, excessive exercise, or stress can trigger a drop in blood sugar.
To prevent hypoglycemia, feed your Shih Tzu small, frequent meals and ensure they have access to fresh water. If you notice sudden shaking with drowsiness, offer a small amount of honey or sugar water and contact your veterinarian immediately.
Other Health Issues: Pain, Nausea, and Neurological Problems
Shaking can be a sign of pain in Shih Tzus, such as from dental disease, ear infections, or joint issues like patellar luxation. Nausea from motion sickness or dietary indiscretion may also cause trembling. Neurological conditions like generalized tremor syndrome (GTS) can cause whole body tremors, though this is less common.
If your Shih Tzu shakes persistently, especially when resting, or shows other symptoms like vomiting, limping, or loss of appetite, a veterinary exam is necessary to rule out serious causes.