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When your dog gets drenched from a bath or a swim, it’s no surprise they use the classic shake to remove some of that moisture. However, those who’ve spent time around dogs might have observed that they often shake in the same manner even when completely dry.
According to This Dog’s Life, the exact reason for this behavior remains unclear—but experts have developed some convincing theories based on their observations. For instance, if your dog shakes after sleeping, it could simply be their way of re-energizing their body after being still. “It’s akin to what you might do when you stand up from your desk: a quick stretch to get your muscles going again,” dog trainer Kristin Benson told This Dog’s Life. Alternatively, it might be a way to release built-up energy during moments of excitement—like before a walk—or during physical exertion.
Not all shakes are harmless: They can also indicate stress. For example, if you notice two dogs shaking after a particularly intense play session, it might signal tension. “While rough play is usually fine, there are times when it escalates, and one or both dogs might feel it’s no longer playful,” Benson explained. In such cases, the shake could act as a self-imposed break.
Since sleep, stress, and excitement are natural aspects of a dog’s life, occasional shaking is usually no cause for concern. However, if your dog shakes far more frequently than normal, it might indicate a sign of issues like a rash or ear infection. In such situations, consulting a veterinarian is the most prudent course of action.
