What causes bleeding kidney cyst?

Bleeding kidney cysts can occur due to several factors, including trauma or injury to the kidney, hypertension, or increased pressure within the cyst itself. Additionally, certain conditions, such as polycystic kidney disease, can predispose individuals to cyst bleeding. In some cases, the cyst may rupture spontaneously, leading to bleeding. Symptoms may include flank pain and hematuria (blood in urine).