Jenny Layton Research: acupuncture and threatened miscarriage Threatened miscarriage refers to when a pregnancy has been deemed ‘viable’, that is, when a heartbeat is present, and bleeding occurs. This intensely scary scenario has no recommended medical treatment options, only to ‘wait and see what happens’, and ‘try not to worry’(!), which is of course impossible. We know that 50-70% of miscarriages are due to chromosomal issues incompatible with life according to Mother Nat