Amenorrhoea

Amenorrhoea is the absence of menstrual periods. Primary amenorrhoea means periods have not started by around age 15, while secondary amenorrhoea means periods that were regular have stopped for three months or more. Pregnancy, breastfeeding and menopause are natural causes. Others include hormone imbalances, thyroid problems, polycystic ovary syndrome, sudden weight loss or intense exercise, which is why investigation is advised.