Monatsperioden

Monatsperioden, also known as menstrual cycles, are the regular physiological changes that occur in the female reproductive system. They typically last between 21 and 35 days and are characterized by the shedding of the uterine lining, which occurs if pregnancy does not occur. The cycle is divided into four main phases: menstruation, the follicular phase, ovulation, and the luteal phase.

Menstruation, or the menstrual phase, usually lasts 3 to 7 days and involves the shedding of the uterine lining through the vagina. This is accompanied by symptoms such as cramping, bloating, and changes in mood. The menstrual flow can vary in color and amount, ranging from light to heavy.

Following menstruation, the follicular phase begins, lasting about 12 to 14 days. During this phase, the follicles in the ovaries mature, and estrogen levels rise. This phase is often marked by an increase in basal body temperature and a decrease in cervical mucus.

Ovulation occurs mid-cycle, typically around day 14 of a 28-day cycle. It is marked by a surge in luteinizing hormone, which triggers the release of a mature egg from the ovary. This phase usually lasts only a few hours.

The luteal phase follows ovulation and lasts about 14 days. During this phase, the corpus luteum produces progesterone, which prepares the uterine lining for potential implantation of a fertilized egg. If fertilization does not occur, the corpus luteum degenerates, leading to a drop in progesterone levels and the start of the next menstrual cycle.

Monatsperioden can be influenced by various factors, including hormonal imbalances, stress, and certain medical conditions. Regular monitoring of menstrual cycles can help in identifying any irregularities and seeking appropriate medical advice if necessary.