Dec 2, 2016 · What is menstruation? Menstruation (pronounced men-stroo-EY-shuhn) is normal discharge of blood and tissue from the uterine lining through the vagina (see diagram) that occurs as …

Menstruation (pronounced men-stroo-EY-shuhn) 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 …

Menstrual irregularities are changes to the menstrual cycle that result in missed periods, irregular periods, or excessive bleeding. NICHD is one of many federal agencies and NIH Institutes working to …

Jun 23, 2016 · For most women, a normal menstrual cycle ranges from 21 to 35 days.1 However, 14% to 25% of women have irregular menstrual cycles, meaning the cycles are shorter or longer than …

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. Treatment for menstrual irregularities …

Aug 2, 2016 · Menstrual irregularities can have a variety of causes, including pregnancy, hormonal imbalances, infections, diseases, trauma, and certain medications.1,2,3,4,5,6

A health care provider diagnoses menstrual irregularities using a combination of the following:1,2,3,4,5

COVID-19 Vaccines and Menstruation In 2021, anecdotal reports about changes in menstrual cycles following COVID-19 vaccination appeared on social media and in the news. To understand if and …

Nov 7, 2016 · In addition, the Branch supports studies on neuroendocrine regulation of menstruation in women with and without related conditions, such as PCOS; on the regulation of pubertal onset and …

NICHD Director Dr. Diana W. Bianchi explains how menstruation provides insights into overall health status and encourages clinical researchers to routinely collect menstrual cycle data.