Possible causes of irregular menstrual cycles include uncontrolled diabetes, eating disorders, hyperthyroidism or hypothyroidism, hyperprolactinemia, certain medications, and perimenopause, according to the National Inst... More » Health Women's Health Menstruation

Mayo Clinic states that the menstrual cycle is the process a woman's body goes through over the course of about a month to prepare for a possible pregnancy. The menstrual cycle includes the release of an egg cell, the th... More » Health Women's Health Menstruation

A woman can stop her menstrual cycle by taking birth control pills continuously, according to WebMD and Mayo Clinic. These types of menstrual suppression contraceptives were first approved in the United States in 2003. More » Health Women's Health Menstruation
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There are many reasons why a woman’s period might come early, including severe weight loss or gain, certain medications, metabolic syndromes, endocrine disorders, stress or the onset of perimenopause. Experts consulted b... More » Health Women's Health Menstruation

Changes in the menstrual cycle can result from taking contraception, eating disorders, stress, lack of sleep, or a sharp increase in exercise, among many other factors, according to WebMD. Other factors that can affect a... More » Health Women's Health Menstruation

A woman who experiences two periods in one month may be reacting to a medication, have thyroid imbalances such as hypothyroidism or hyperthyroidism, or suffer from uterine polyps or fibroids, according to EmpowHER. Extre... More » Health Women's Health Menstruation

Down syndrome, Fragile X syndrome, cleft lip, spina bifida and muscular dystrophy are some types of birth defects, according to the National Institute of Child Health and Human Development. More » Health Conditions & Diseases