Lena Dunam has been hospitalized for a ruptured ovarian cyst.
Her rep released a statement saying, "Lena Dunham has been very public with her personal bouts with endometriosis. This morning, she suffered from an ovarian cyst rupture and has been taken to the hospital. Lena will be undergoing surgery at an undisclosed hospital. We thank you for your understanding and hope that Lena's privacy will be respected."