ovarian hyperstimulation syndrome (OHSS), a rare complication associated with in vitro fertilization. ▪ OBSERVATIONS: Pain in the left lower quadrant of the abdomen is usually noted. Ultrasonography of the pelvis is appropriate and will often reveal a cyst on the ovary. Hypercoagulability, ascites, pleural effusions, and thrombosis can occur. ▪ INTERVENTIONS: Conservative management is based on symptoms. ▪ PATIENT CARE CONSIDERATIONS: The syndrome is usually self-limited.
