menstrual period

{
  "id": "MLC-T-ONC-005268",
  "term": "menstrual period",
  "field": "Oncology and biomedicine",
  "definition": "The normal monthly shedding of blood and tissue from the lining of the uterus (womb) when pregnancy does not occur. During a menstrual period, menstrual blood and tissue flow from the uterus through the cervix and pass out of the body through the vagina. A menstrual period usually occurs about every 28 days (except during pregnancy) and lasts 3 to 5 days, but this can vary from person to person. It normally starts during puberty and ends at menopause. Also called menses and menstruation.",
  "synonyms": [
    "menses",
    "menstruation"
  ],
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/menstrual-period/"
}