The Taylor Manifest Anxiety Scale was administered to 28 women with the Pre-menstrual Syndrome, and to 22 controls. The TMAS was administered four times within three weeks of the menstrual cycle (twice during the pre-menstrual period). It was found that women with PMS had higher scores on the TMAS during the entire cycle. These scores also rose during the pre-menstrual period. It was concluded that: (a) women with PMS are more anxious, (b) the TMAS may not be a reliable instrument for measuring trait anxiety.