Which of the following can be a sign of leptospirosis in dogs?

Leptospirosis is a bacterial infection caused by the Leptospira bacteria, which can affect dogs and other animals. One of the notable symptoms of this serious condition is the presence of blood in urine, also known as hematuria. This occurs due to the infection damaging the kidneys, leading to inflammation and bleeding in the urinary tract.

Recognizing such a symptom is crucial for early diagnosis and treatment, as leptospirosis can have severe complications and even be life-threatening if not addressed promptly. Other signs may include fever, vomiting, or jaundice, but blood in urine is a significant and concerning indicator that necessitates immediate veterinary attention.