It's important to take your dog to the vet immediately. Here's why:
* Normal heat cycles usually last 2-3 weeks. A longer cycle could indicate a medical problem.
* There are several possible health concerns. These could include uterine infections, tumors, or other issues.
* Prompt veterinary care is crucial. Early diagnosis and treatment can prevent complications and improve your dog's outcome.
Please contact your veterinarian right away. They will be able to properly diagnose the situation and provide the best course of treatment for your furry friend.