There may be many reasons for dogs to leak urine, such as:

1. Age problem: As the dog ages, the muscles of the dog's bladder and urethra will gradually relax, resulting in incomplete urine. control. Urinary incontinence is relatively more common in older dogs.

2. Physiological problems: Some dogs are born with some physiological problems, such as deformities of the urinary system or urethral stricture, etc. These can cause your dog to leak urine.

3. Psychological problems: Dogs may leak urine due to emotional problems such as anxiety, fear, and loss.