An infertility sonography profile, or folliculometry, is a specialized series of transvaginal ultrasound scans used to track the development of ovarian follicles. These fluid-filled sacs house and mature a woman's eggs. Starting early in the menstrual cycle, a sonographer performs serial scans every few days to monitor follicular growth, document the dominant follicle's size, and predict the exact timing of ovulation. The procedure also measures the thickness and pattern of the endometrial lining, ensuring the uterus is optimally prepared to support the implantation of a fertilized egg.

Reproductive endocrinologists primarily utilize this detailed imaging profile to optimize the timing of natural conception, intrauterine insemination (IUI), or in vitro fertilization (IVF). It is vital for women undergoing ovulation induction therapies, as it allows clinicians to monitor medication responses and prevent dangerous complications like ovarian hyperstimulation syndrome. By pinpointing the fertile window, folliculometry significantly enhances the precision and success rates of assisted reproductive treatments.