(CNN)Two college students say they were forced to submit to transvaginal probes as part of their classroom training to learn how to perform the medical procedure.

The details are outlined in a federal lawsuit filed Thursday in Orlando against Valencia College and three instructors. It alleges that medical diagnostic students at Valencia College were forced to submit to the examination of their sexual organs under threat of having their grades reduced or of being blacklisted by future employers. The three defendants named in the lawsuit, Maureen Bugnacki, Linda Shaheen and Barbara Ball, have not responded to CNN’s requests for comment.

Peer physical examination is an accepted practice in the medical field, but several recent reports cited by the U.S. National Library of Medicine mention a growing need for clear policies regarding peer physical examination at medical schools.

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