Shih Tzus are a brachycephalic breed with a unique anatomy that can make shaking or trembling a common concern for owners. The most important thing to understand is that while occasional shaking is normal, persistent or severe tremors often point to an underlying issue specific to this breed’s health and temperament.
Our editorial team has gathered accurate, breed-specific information to help you interpret your Shih Tzu’s shaking. From their distinctive flat faces to their dense double coats, many factors influence why your Shih Tzu might shake.
Cold and Temperature Sensitivity in Shih Tzus
Shih Tzus have a single coat of hair rather than a fur coat with an undercoat, making them less tolerant of cold temperatures. Their small size and low body fat also contribute to rapid heat loss. If your Shih Tzu is shaking, it may simply be trying to generate body heat.
Unlike many double-coated breeds, Shih Tzus can feel chilly even in mildly cool conditions. Providing a warm indoor environment and limiting exposure to cold drafts can help. However, avoid overheating, as their flat faces make them prone to heatstroke.
Anxiety and Excitement: Common Triggers
Shih Tzus are companion dogs bred to be close to their owners, and they often develop strong attachment. This can lead to anxiety when separated or in unfamiliar situations, manifesting as trembling or shaking.
Excitement is another common cause. Shih Tzus may shake when greeting you or anticipating a walk. This type of shaking is usually short-lived and accompanied by tail wagging. If anxiety seems persistent, consult a veterinarian or behaviorist for breed-specific calming strategies.
Brachycephalic Syndrome and Respiratory Distress
As a brachycephalic breed, Shih Tzus have shortened skulls that can cause breathing difficulties. When a Shih Tzu struggles to breathe, it may shake or tremble due to the effort of getting enough air. This is especially noticeable after exercise, in hot weather, or when excited.
Symptoms like noisy breathing, snoring, or collapsing episodes require veterinary attention. While not all Shih Tzus have severe brachycephalic syndrome, any shaking linked to breathing should be taken seriously to prevent respiratory distress.
Hypoglycemia in Toy Breeds
Shih Tzus are a toy breed and can be prone to hypoglycemia, or low blood sugar, especially in puppies and small adults. Shaking, lethargy, and weakness are classic signs. This can occur if meals are skipped, after intense play, or due to stress.
Feeding small, frequent meals appropriate for toy breeds helps maintain stable blood sugar. If your Shih Tzu shows signs of hypoglycemia, offer a small amount of a sugary food like honey or maple syrup and contact your veterinarian immediately.
Pain, Injury, or Orthopedic Issues
Shih Tzus are prone to certain orthopedic problems like patellar luxation (loose kneecaps) and intervertebral disc disease due to their long backs. Pain from these conditions can cause shaking or trembling, especially when moving or being touched.
If your Shih Tzu shakes along with limping, reluctance to jump, or crying out, a veterinary exam is needed. Weight management and joint supplements may be recommended, but avoid giving any medication without professional advice.