Amenorrhea refers to the absence of menstruation. It can be primary, where a young woman does not experience her first period by age 15, or secondary, where menstruation stops for three or more consecutive cycles in women who previously had regular periods. While amenorrhea is a symptom rather than a condition in itself, it can be a sign of various underlying health issues. Causes of Amenorrhea: Amenorrhea can be caused by a range of physiological, hormonal, and lifestyle factors. Some common causes include: 1.Hormonal Imbalance: This is one of the leading causes of amenorrhea, often resulting from conditions affecting the hypothalamus, pituitary gland, thyroid, or ovaries. Hormonal imbalance disrupts the menstrual cycle. 2.Polycystic Ovarian Syndrome (PCOS): PCOS is a common endocrine disorder that causes irregular ovulation and high levels of androgens, leading to missed or irregular periods. 3.Stress: Chronic stress impacts the hypothalamus, which regulates hormones and menstru...