Why Do Chihuahuas Shake?

why do chihuahuas shake
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Chihuahuas are undoubtedly one of the most adorable and popular dog breeds, known for their small size and distinctive features. However, one common behavior often observed in Chihuahuas is shaking or trembling, which can leave many dog owners curious and concerned. In this article, we will delve into the reasons behind why Chihuahuas shake and what you can do to help them.

1. Cold Sensitivity

One of the primary reasons why Chihuahuas shake is their sensitivity to cold temperatures. Due to their tiny size and short fur, Chihuahuas are more prone to feeling cold compared to larger dog breeds. Their shaking or trembling is their way of generating heat and keeping themselves warm. It is essential to provide your Chihuahua with warm and cozy environments, especially during colder seasons.

2. Anxiety and Fear

Chihuahuas are known for their often strong-willed and highly-strung temperaments. They can be easily triggered by external stimuli, resulting in feelings of anxiety and fear. Shaking can be an outward manifestation of these emotions. Common triggers include loud noises, unfamiliar surroundings, or being separated from their owners. Ensuring a calm and secure environment for your Chihuahua is crucial in minimizing their anxiety and reducing the frequency of trembling.

3. Hypoglycemia

Hypoglycemia, or low blood sugar, can also contribute to Chihuahuas shaking. Due to their small size and high metabolism, Chihuahuas can experience a rapid drop in blood sugar levels. This can occur if they haven’t eaten for an extended period or if their diet lacks proper nutrients. It is advisable to feed your Chihuahua small, frequent meals throughout the day to maintain stable blood sugar levels and prevent shaking episodes.

4. Excitement and Happiness

Believe it or not, not all shaking in Chihuahuas is a cause for concern. Sometimes, their trembling can be a display of excitement and happiness. This is especially noticeable when they are eagerly anticipating something, such as the arrival of their favorite human or a playtime session. As long as the shaking is accompanied by positive behavior and overall good health, there is usually no need to worry.

5. Health Issues

While shaking can be relatively normal for Chihuahuas, it is essential to be mindful of any sudden or excessive shaking that may indicate underlying health issues. Certain medical conditions, such as epilepsy, hypothyroidism, or neurological disorders, can cause involuntary shaking or tremors. If you notice any significant changes or suspect that your Chihuahua’s shaking is related to an underlying health problem, it is best to consult with a veterinarian for a proper diagnosis and treatment plan.

6. Environmental Factors

In addition to cold sensitivity, other environmental factors may contribute to Chihuahuas shaking. Excessive noise, strong vibrations, or even sudden changes in atmospheric pressure can all trigger a shaking response in dogs. Pay attention to these factors and try to mitigate them when possible, providing your Chihuahua with a calm and stress-free environment.


Shaking in Chihuahuas can have various causes, ranging from natural sensitivity to cold to underlying health issues and anxiety. While some shaking can be considered normal for this breed, it is crucial to monitor your Chihuahua’s behavior and seek veterinary attention if you have concerns. Providing a warm and secure environment, feeding a balanced diet, and seeking professional advice when necessary can help ensure your Chihuahua’s well-being and minimize their shaking episodes.

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