Transvaginal Sonography (TVUS)

Transvaginal sonography is an ultrasound scan taken with a slim probe placed in the vagina, which brings the ovaries and uterus into clear view. The close position gives sharper pictures than a scan through the abdomen. It uses no incision and no radiation.

Cycle-timed scanning is how a clinician watches ovulation happen instead of guessing at it. A series of scans can show a follicle grow, then rupture, or fail to rupture. One ultrasound study of 152 women with infertility or repeated miscarriage found the cell cluster that surrounds the egg absent in 43.4 percent, a finding of empty follicle syndrome.¹

A scan is only as good as its timing. Her own chart, not a calendar date, is what tells a clinician when to look.