Both vaginal and cesarean deliveries can cause urinary disorders after childbirth, which affect women's lives. These disorders may include postpartum urinary retention, frequent urination, urgency, and other mixed urinary disturbances.

Formed from the crystallization and deposition of minerals in the urine, when kidney stones appear, patients often experience pain, burning urination, and frequent urination, causing certain obstacles in daily routines. What size of kidney stones requires surgery, and are 8mm kidney stones dangerous?