Causes of sudden bleeding from the urethra of male dogs:

1. Urethritis or urinary tract infection. This infection is usually caused by bacterial infection or fungal infection.

2. Urethral stones have not been surgically treated for a long time and should be removed in time, resulting in urethral mucosal hyperplasia and bleeding, thus causing such symptoms.

3. Bladder stones or cystitis, etc., lead to blood in urine due to damage to the bladder mucosa.

Treatment methods for urethral bleeding in male dogs:

1. It is recommended to use hemostatic drugs to avoid licking by dogs, and use antibacterial drugs if necessary.

2. If the bleeding is caused by stones, it needs to be treated by flushing or surgery, and the dog’s water intake needs to be increased. It is recommended to feed the dog urinary tract prescription food.

3. If hematuria is caused by a urinary system infection and the symptoms are mild, you can use drugs containing amoxicillin and other ingredients.