This is a powerful, non-invasive, and highly sensitive diagnostic test, most commonly used to investigate unexplained infertility. This DNA PCR test uses a simple, self-collected menstrual fluid sample to detect the genetic material of specific, 'hidden' infections. Its primary use is to provide a definitive diagnosis for female genital tuberculosis (TB), a "silent" condition that is a major, treatable cause of infertility. This simple, advanced test provides the critical, conclusive answer your doctor needs to find the root cause of your fertility challenges.