Gallbladder damage most reported problem with Yaz birth control pill
The number of lawsuits against Bayer for its top-selling birth control pill, Yaz, has climbed to more than 4,200. The lawsuits allege that Bayer knew its pills put women at risk for blood clots, strokes, and heart attacks, a common side effect with any oral contraceptive. However, nearly half of the lawsuits against Bayer allege that the pills caused damage to the gallbladder and in many instances resulted in gallbladder removal. Bayer dismisses the notion that its pills can cause gallbladder problems and maintains its pills are no more dangerous than other oral contraceptives.

As Bayer HealthCare begins defending itself against a flurry of lawsuits citing health problems over its blockbuster birth control pills