title: Mittelschmerz. Sonographic demonstration.
abstract: Ultrasonography of the pelvis at mid-menstrual cycle in normal women has demonstrated small quantities of free fluid in 40% of cycles. Two thirds of the cycles associated with pain had ultrasonically demonstrated fluid at ovulation. These sonographic findings at Mittelschmerz confirm the physiological trauma of ovulation.
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D008297:Male; D008598:Menstruation; D010060:Ovulation; D010146:Pain / Q000175:diagnosis / Q000209:etiology*; D010388:Pelvis / Q000378:metabolism; D014463:Ultrasonography