Definition of Menses

1. Noun. The monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause. "The semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females"

Exact synonyms: Catamenia, Flow, Menstruation, Menstruum, Period
Generic synonyms: Discharge, Emission, Expelling
Specialized synonyms: Hypermenorrhea, Menorrhagia, Oligomenorrhea
Derivative terms: Catamenial, Flow, Menstruate

Definition of Menses

1. n. pl. The catamenial or menstrual discharge, a periodic flow of blood or bloody fluid from the uterus or female generative organs.

Definition of Menses

1. Noun. The discharge of blood mixed with pieces of cellular tissue from the uterus of a female out through her vagina, which occurs roughly every month; menstrual flow. ¹

¹ Source:

Definition of Menses

1. The menstrual cycle is a recurring cycle of physiologic changes that occurs in reproductive-age females. Overt menstruation (where there is blood flow from the vagina) occurs primarily in humans and other mammals such as chimpanzees. Females of other species of placental mammal undergo estrous cycles, in which the endometrium is completely reabsorbed by the animal (covert menstruation) at the end of its reproductive cycle. This article focuses on the human menstrual cycle. The menstrual cycle, under the control of the endocrine system is necessary for reproduction. It may be divided into three distinct phases: menstruation, the follicular phase and the luteal phase. Ovulation defines the transition from the follicular phase to the luteal phase. The length of each phase varies from woman to woman and cycle to cycle, though the average menstrual cycle is 28 days. Hormonal contraception interferes with the normal hormonal changes with the aim of preventing reproduction. Stimulated by gradually increasing amounts of estrogen in the follicular phase, menses slow then stop, and the lining of the uterus thickens. Follicles in the ovary begin developing under the influence of a complex interplay of hormones, and after several days one or occasionally two become dominant (non-dominant follicles atrophy and die). Approximately mid-cycle, 24-36 hours after the Luteinizing Hormone (LH) surges, the dominant follicle releases an ovum, or egg in an event called ovulation. After ovulation, the egg only lives for 24 hours or less without fertilization while the remains of the dominant follicle in the ovary become a corpus luteum; this body has a primary function of producing large amounts of progesterone. Under the influence of progesterone, the endometrium (uterine lining) changes to prepare for potential implantation of an embryo to establish a pregnancy. If implantation does not occur within approximately two weeks, the corpus luteum will involute, causing sharp drops in levels of both progesterone and estrogen. These hormone drops cause the uterus to shed its lining in a process termed menstruation. In the menstrual cycle, changes occur in the female reproductive system as well as other systems (which lead to breast tenderness or mood changes, for example). A woman's first menstruation is termed menarche, and occurs typically around age 12. The end of a woman's reproductive phase is called the menopause, which commonly occurs somewhere between the ages of 45 and 55. - See also: mense

Medical Definition of Menses

1. The catamenial or menstrual discharge, a periodic flow of blood or bloody fluid from the uterus or female generative organs. Origin: L. Mensis month, pl. Menses months, and the monthly courses of women. Cf. Month. Source: Websters Dictionary (01 Mar 1998)

Menses Pictures

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Lexicographical Neighbors of Menses

mensal line

Literary usage of Menses

Below you will find example usage of this term as found in modern and/or classical literature:

1. Surgery, Gynecology & Obstetrics by The American College of Surgeons, Franklin H. Martin Memorial Foundation (1910)
"Prostitute, died at 21 of cardiac disease; menses ceased at 20: ovaries described as ... menses began at 14, regular but scanty and gradually getting less, ..."

2. Medical lexicon by Robley Dunglison (1860)
"Flow of the menses. Frequently, the word is used synonymously with uterine hemorrhage or ... The ordinary flow of ths menses. Also, too long continuing, ..."

3. A Manual of Medical Jurisprudence by Alfred Swaine Taylor (1897)
"The continuance of the menses after conception 111 ay make a pregnancy appear short. A case is reported in which a ~*v~ ornan was married in the summer of ..."

4. The Principles of Midwifery: Including the Diseases of Women and Children by John Burns (1843)
"Of the Cessation of the ABOUT the period when the menses should cease, they become irregular, and sometimes are obstructed for two or three months, ..."

5. Medical Jurisprudence by Alfred Swaine Taylor (1856)
"Suppression of the menses.—It is well known that in the greater number of ... There are some cases recorded which show that women, in whom the menses have ..."

6. A Treatise on the Diseases of Females by William Dewees (1854)
"Of the Immoderate Flow of the menses. This complaint is much more rare than we ... I have seen, comparatively, very few cases of superabundant menses—for in ..."

7. Clinical Lectures on the Diseases of Women and Children by Gunning S. Bedford (1855)
"Sub- mucous Fibrous Tumor of the Uterus, in a married Woman, twenty-three Years of age, with suppression of the menses for tho last twenty-two Months. ..."

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