The sudden stiffness of the dog's limbs may be due to the following three reasons: 1. Heat stroke, which may be caused by the dog staying in the sun for a long time, which may lead to heat stroke; 2. Hypoglycemia, which may be caused by the dog Caused by cold, hunger, gastrointestinal disorders, etc.; 3. Postpartum cramps, some small dogs are prone to this phenomenon after the first or second birth.

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When dogs suffer from canine distemper, they will also have symptoms such as body stiffness and convulsions. Canine distemper is a kind of canine distemper in dogs. Common infectious diseases will cause neurological symptoms in dogs in the later stages. Therefore, once a dog is found to be suffering from canine distemper, it must be sent to a pet hospital for treatment immediately.