Hair loss can be caused by different factors such as medical conditions, inappropriate care, genes. Your dermatologist will ask you questions about your eating habits, medication (including vitamins and food supplements), family history, hair care habits, recent diseases. In women, hormonal factors are also important, so you can be asked about pregnancy, menstrual cycle, menopause. When hair grows normally, 90% of it is in a growth phase, and the other 10% – in a rest phase, which lasts 2-3 months. At the end of the rest period, the hair falls, and a new one grows from the same follicle taking its place and continuing the cycle. Most hair loss is normal as a loss of this cycle, and a loss of 50-100 hairs per day is ordinary.