Menstruation is normal discharge of blood and tissue from the uterine lining through the vagina (see diagram) that occurs as part of a woman’s monthly menstrual cycle. 

Menstruation, or period, is normal vaginal bleeding that happens as part of a woman’s monthly cycle. Many women have painful periods, also called dysmenorrhea.

Painful menstrual periods are periods in which a woman has crampy lower abdominal pain, which can be sharp or aching and come and go. 

For most women, a normal menstrual cycle ranges from 21 to 35 days. However, 14% to 25% of women have irregular menstrual cycles, meaning the cycles are shorter or longer than normal.

Menstrual irregularities can have a variety of causes, including pregnancy, hormonal imbalances, infections, diseases, trauma, and certain medications.

Treatments for menstrual irregularities often vary based on the type of irregularity and certain lifestyle factors, such as whether a woman is planning to get pregnant.

Amenorrhea  is the medical term for the lack of a menstrual period. Amenorrhea is not a disease, but it can be a symptom of another condition.

The treatment for amenorrhea depends on the underlying cause, as well as the health status and goals of the individual.

Absence of a woman’s monthly menstrual period is called amenorrhea.

Absence of a woman’s monthly menstrual period is called amenorrhea. Secondary amenorrhea is when a woman who has been having normal menstrual cycles stops getting her periods for 6 months or longer.

Premenstrual syndrome, or PMS, is a group of physical and emotional symptoms that start one to two weeks before your period

Premenstrual syndrome, or PMS, refers to a set of symptoms that most often