👉 The term "nullipennes" is a medical condition that refers to a woman who has never had any menstrual periods. This can be caused by various factors such as hormonal imbalances, endometrial cancer, or other genetic abnormalities. In some cases, women who have never had menstruation may have symptoms of premenstrual syndrome (PMS), which is characterized by mood swings, fatigue, and changes in appetite. It's important to note that these symptoms are not always present and can