LUF-syndrome biological diagnosis by basal body temperature (BBT) graph.

73 consecutive patients were monitored and submitted to ambulatorial screening for primary infertility. In all of them was also performed a study of the BBT behaviour and the results reported on a graph. All these with LUF syndrome had substantial deviation of the BBT graphs. This observation can make us obtain a new parameter and a first diagnostic approach in the study of the ovulatory infertility.