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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «M»:

  1. Menstrual Menstrual
    Menstrual: Pertaining to menstruation (the menses), as in last menstrual period, menstrual cramps, menstrual cycle, and premenstrual syndrome. From the Latin menstrualis, from mensis meaning month....
  2. Menstrual cramps Menstrual cramps
    Menstrual cramps: Cramping in the lower abdomen, usually in the first or second day of the menstrual cycle. These are caused contractions of the uterus as it expels its unneeded contents, and also by the passage of clotted blood through the cervix. Ibuprofen or other pain relievers can reduce t...
  3. Menstrual cycle Menstrual cycle
    Menstrual cycle: The monthly cycle of changes in the ovaries and the lining of the uterus (endometrium), starting with the preparation of an egg for fertilization. When the follicle of the prepared egg in the ovary breaks, it is released for fertilization and ovulation occurs. Unless pregnancy ...
  4. Menstrual irregularity Menstrual irregularity
    Menstrual irregularity: The normal menstrual cycle is about four weeks long, and often follows the phases of the moon. Its length varies from three to seven days, but is usually consistent. However, girls and teenagers who menstruate are usually irregular. This is not a cause for concern unless...
  5. Menstrual migraine Menstrual migraine
    Menstrual migraine: A migraine headache that affects a woman each month between the 2nd day before the start of the menstrual period and the end of menstruation. Menstrual migraine is different from nonmenstrual attacks of migraine, even in the same women, in the regularity of its timing and its gre...
  6. Menstrual spotting Menstrual spotting
    Menstrual spotting: The presence of apparent menstrual blood during the wrong parts of the menstrual cycle. Some women have a tendency to bleed around ovulation, which occurs at about the 14th day after the first day of menstrual bleeding. In others, spotting can be a sign of internal problems,...
  7. Menstrual synchronization Menstrual synchronization
    Menstrual synchronization: A phenomenon that occurs when two or more menstruating women live together, in which the menstrual cycles of the women gradually become synchronized. The mechanism and reason for this effect is unknown, although current research lays it to the effects of female pherom...
  8. Menstrually associated migraine Menstrually associated migraine
    Menstrually associated migraine: See: Menstrual migraine....
  9. Menstruation Menstruation
    Menstruation: The periodic blood that flows as a discharge from the uterus. Also called menorrhea, the time during which menstruation occurs is referred to as menses. The menses occurs at approximately 4 week intervals to compose the menstrual cycle. ...
  10. Menstruation, anovular Menstruation, anovular
    Menstruation, anovular: Menstruation without ovulation. The egg stays within the ovary and usually disintegrates but sometimes it is fertilized, resulting in a life-threatening pregnancy within the ovary....
  11. Menstruation, cessation of Menstruation, cessation of
    Menstruation, cessation of: Menstruation ends naturally in middle age with the onset of the menopause. It can also end suddenly as a result of induced menopause. Cessation of menstruation in non-menopausal women may be due to pregnancy, illness, disorders of the hypothalamus or pituitary gland,...
  12. Menstruation, retrograde Menstruation, retrograde
    Menstruation, retrograde: The flow of menstrual blood from the uterus into the fallopian tubes, and potentially into the abdomen. This condition can lead to endometriosis....
  13. Mental child injury Mental child injury
    Mental child injury: Also known as emotional child abuse, this is the third most frequently reported form of child abuse (after child neglect and physical child abuse), accounting 17% of all cases of child abuse. It is likely that emotional child abuse is greatly underreported, since it can be...
  14. Mental retardation Mental retardation
    Mental retardation: A term used when a person has certain limitations in mental functioning and in skills such as communicating, taking care of him or herself, and social skills. These limitations will cause a child to learn and develop more slowly than a typical child. Children with mental retardat...
  15. Mental retardation and clasped thumbs Mental retardation and clasped thumbs
    Mental retardation and clasped thumbs: A syndrome with the following characteristic features: (1) Neurological: Mental retardation and aphasia (lack of speech); (2) Limbs: Clasped (adducted) thumbs, absent extensor pollicis longus and/or brevis muscles to the thumb, shuffling gait, and leg spasticit...