A 7-year-old Shih Tzu cannot control her bladder and passes blood in the urine

> 3 days of haematuria and urinary incontinence. Owner said that this happened after her heat which was 2 weeks ago.

X-rays show no radio-dense urinary stones.

Many older female dogs have urinary tract infections. It could be from continuous licking of the vulva during the heat period as the female dog was cleaning herself. Licking transferred bacteria to the bladder. Spaying when she was younger would have prevented this licking and infection to bladder.