What is the biggest ovarian cyst ever recorded?

The largest ovarian cyst ever recorded was reportedly over 30 inches in diameter and weighed around 140 pounds. This extraordinary case was documented in 2014 when a woman underwent surgery to remove the cyst, which had been growing for several years. Such massive cysts are extremely rare and can lead to serious health complications if not addressed. Typically, ovarian cysts are much smaller and often resolve on their own.