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Related to menses: Mensa


the periodic discharge from the vagina of blood and tissues from a nonpregnant uterus; the culmination of the menstrual cycle. Menstruation occurs every 28 days or so between puberty and menopause, except during pregnancy, and the flow lasts about 5 days, the times varying from woman to woman.
Menstrual Difficulties. Some menstrual discomfort is common, but acute discomfort is usually indicative of some disorder. Among the disorders sometimes causing dysmenorrhea are leiomyoma uteri, endometrial cysts, and displacement of the uterus. Menstrual pain may in some cases be related to tension or anxiety. Excessive bleeding or prolonged periods (hypermenorrhea) are sometimes an indication of tumors, polyps, cancer, or inflammation.

Menstruation usually starts between the ages of 11 and 14 and continues into the forties or fifties. At first the periods may be irregular, but once they are established they usually occur in a fairly definite rhythm, at intervals of 21 to 35 days. In these regular cycles, there may be monthly variations of a few days, which are considered normal. Cycle length may be influenced by changes in climate or living conditions, or by emotional factors. Slight irregularities, especially if they occur over a period of time, may be warnings of disturbance of either the thyroid or pituitary glands, or of tumors of the uterus or ovaries.

Occasionally menstruation does not occur at puberty; this is known as primary amenorrhea. It may be caused by underdevelopment or malformation of the reproductive organs, or by glandular disturbances, which generally can be corrected by the administration of hormones.

General ill health, a change in climate or living conditions, emotional shock, or, frequently, either the hope or fear of becoming pregnant can sometimes stop menstruation after it has begun (secondary amenorrhea). If this cessation is of short duration, it is not a cause for alarm. If it continues over a long period of time, and there is also the problem of infertility, hormone treatments may be necessary.
anovular menstruation (anovulatory menstruation) periodic uterine bleeding without preceding ovulation.
vicarious menstruation bleeding from extragenital mucous membrane at the time one would normally expect the menstrual period.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A periodic physiologic hemorrhage occurring at intervals of about 4 weeks and having its source in the uterine mucous membrane; usually the bleeding is preceded by ovulation and predecidual changes in the endometrium.
See also: menstrual cycle.
Synonym(s): menstrual period
[L. pl. of mensis, month]
Farlex Partner Medical Dictionary © Farlex 2012


pl.n. (used with a sing. or pl. verb)
2. The material, consisting of blood and cellular debris from the uterus, discharged during menstruation.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


(1) The period during which menstruation occurs.
(2) The endometrium.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


1. The period during which menstruation occurs.
2. The endometrium per se.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


A periodic physiologic hemorrhage, which occurs at approximately 4-week intervals; its source is the uterine mucous membrane; usually the bleeding is preceded by ovulation and predecidual changes in the endometrium.
See also: menstrual cycle
Synonym(s): emmenia, menstrual period.
[L. pl. of mensis, month]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


A periodic physiologic hemorrhage, which occurs at approximately 4-week intervals; its source is the uterine mucous membrane; usually the bleeding is preceded by ovulation and predecidual changes in the endometrium.
Synonym(s): emmenia.
[L. pl. of mensis, month]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about menses

Q. preventing pre menstrual MIGRAINES. Has anyone come up with any good preventive medicine for migraines? Mine come systematically right before and during the menstrual cycle. My (male) neurolight in Paris didn't seem to see a linkk with migraines and my cycle - or offer any preventive advice. I take Relpax to relieve. Does anyone have a more natural or preventive solution?

A. I have the same problem and take Topomax to prevent the migrains. Also make sure you get enough rest right before you start. There seems to be a correlation. It took about 2 months to fully work but at least the first migrain after I started taking Topomax wasn't as severe.

Q. can you get poly-cystic ovarian syndrome when you still have your menstrual cycle?

A. polycystic ovarian syndrome is when the egg does not come out- so i guess there is no menstrual that month. but as far as i know it's not every month that an egg decides to stay at home after 18... i guess you can check up more exact at this site:

Q. is it normal to get a nausous feeling around the time i would start my menstrual cycle?

A. Yes, it is absolutely normal to feel nausea before and during menstrual cycle. The shift in hormonal levels can cause also headaches, mood changes, feeling of bloating and other common symptoms.

More discussions about menses
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References in periodicals archive ?
These menses without ovulation can be painful but are generally short-lived and this settles with time.
Mrs Bolanle: Of course, I remember: estrogen and progesterone, which reduce until the levels are so low that menses eventually stop.
This will help determine what treatment(s) may be effective to restore menses and ovulation.
During her convalescent leave, on day 338, the patient stopped taking lorazepam and began her menses the next day when catatonia reemerged.
At the time of the survey, 12 girls (9.8%) were premenarcheal and therefore could not complete specific questions relating to their menses. A total of 111 girls (90.2%) had attained menarche, and the mean age of menarche was 11.12 [+ or -] 1.76 years.
Even though average blood loss is estimated at 30 mL per period, that number means little in clinical practice because patients cannot measure the actual amount of menses. Better indicators of abnormally greater flow include flow lasting longer than 7 days, finding clots larger than a quarter, changing menstrual products every 1 -2 hours, leaking onto clothing such that patients need to take extra clothes to school, and any heavy periods that occur with easy bruising or with a family history of bleeding disorders.
To compare the statistical likelihood of early onset of menses in our study population, it was compared against the average menstrual cycle of approximately 21 and 28 days using the 1-sample t test, comparing the means for statistical significance.
If a woman who develops PMS does not experience significant weight gain, the first thing I try is vitamin B6,100 mg/d, prior to menses. Vitamin B6 is a cofactor in the production of numerous neurotransmitters.
[9-11] Accounting for prior contraceptive use, changes in menses post sterilisation have been shown to result in the return of pre-contraceptive use characteristics, including dysmenorrhoea, heavy menstrual flow and cycle irregularity.
For prolonged bleeding or irregular menses, see a doctor right away.
More than half (54.3%) of students suffered from moderate pain during menses. The mean duration of menses was 4.31 days (SD [+ or -] 1.45).
Menstrual Problems in Adolescent Girls Menstrual Problems In Adolescent girls % Dysmenorrhoea 414 66.34 Irregular cycles 192 30.76 Menorrhagia 106 16.98 Premenstrual symptoms (PMS) 304 48.71 Abnormal duration of menses 90 14.42 Diagnosis of polycystic ovarian 102 16.34 disease(PCOD) Table 3.