menstruaaltsüklis
Menstrual cycle, also known as the menstrual period, is a series of physiological changes that occur in the female reproductive system. It is characterized by the shedding of the uterine lining, which is a preparation for a potential pregnancy. The menstrual cycle typically lasts about 28 days, but it can vary from person to person and from cycle to cycle. The cycle is divided into four main phases: menstruation, the follicular phase, ovulation, and the luteal phase.
Menstruation, or the menstrual flow, occurs at the beginning of the cycle. It usually lasts for about
The follicular phase follows menstruation and lasts until ovulation. During this phase, the follicle-stimulating hormone (FSH)
Ovulation occurs mid-cycle, typically around day 14 of a 28-day cycle. During ovulation, the egg is released
The luteal phase begins after ovulation and lasts until the next menstrual period. During this phase, the
The menstrual cycle is influenced by various factors, including hormonal levels, age, and overall health. Changes