Tuesday, February 14, 2012
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Polycystic Ovarian Syndrome (PCOS) Learning Center

Abnormal, irregular, or very light or infrequent menstrual periods; Absent periods, usually (but not always) after having one or more normal menstrual periods during puberty (secondary amenorrhea) Acne that gets worse; Decreased breast size; Devel...
Source:ADAM
Date:February 5, 2008
While the exact cause of PCOS is unknown, it runs in families, so the tendency to develop the syndrome may be inherited. The interaction of hyperinsulinemia and hyperandrogenism is believed to play a role in chronic anovulation in susceptible wome...
Source:Gale Encyclopedia of Medicine
The first signs of PCOS tend to manifest at puberty. As a result of the failure to ovulate normally, young women with PCOS may fail to menstruate or menstruate only erratically. A small percentage of women may have normal menstrual cycles. Women a...
Source:Gale Encyclopedia of Genetic Disorders Part I
The first signs of PCOS tend to manifest at puberty. As a result of the failure to ovulate normally, young women with PCOS may fail to menstruate or menstruate only erratically. A small percentage of women may have normal menstrual cycles. Women a...
Source:Gale Encyclopedia of Genetic Disorders Part II
Unintentional weight gain is an increase in body weight that occurs when a person takes in more calories than the body needs or uses.
Source:ADAM
Date:October 18, 2009
The term overweight is used to describe an excess amount of total body weight including all tissues (fat, bone, muscle, etc.) and water. Obesity , in contrast, is an excess amount of body fat. An adult woman or man who has a body-fat percentage ex...
Source:Gale Nutrition and Well-Being A to Z
Absent menstruation means no menstrual flow, or period. Absent menstruation may be: Primary - no menstruation before age 16; Secondary - menstruation begins at the appropriate age, but later stops for more than 3 cycles or 6 months. Absent menstru...
Source:ADAM
Date:June 26, 2008
The menstrual cycle is not the same for every woman. On average, menstrual flow occurs every 28 days (with most women having cycles between 24 and 34 days), and lasts about 4-7 days. However, there is a wide variation in timing and duration that i...
Source:ADAM
Date:September 2, 2009
Anything that interferes with the normal menstrual cycle, causing pain , unusually heavy or light bleeding, or missed periods.
Source:Gale Encyclopedia of Medicine
The normal amount of body hair varies widely among women. Usually, a woman will only grow fine hair (peach fuzz) on her lips, chin, chest, abdomen, or back. When women grow coarse, dark hairs in these areas, the condition is called hirsutism. This...
Source:ADAM
Date:September 2, 2009
Virilization is when a female develops male sex characteristics, or a newborn boy has increased male characteristics at birth.
Source:ADAM
Date:April 12, 2009
Adrenal virilism is the development or premature development of male secondary sexual characteristics caused by male sex hormones (androgens) excessively produced by the adrenal gland. This disorder can occur before birth and can lead to sexual ab...
Source:Gale Encyclopedia of Medicine
Medical dictionaries define oligomenorrhea as infrequent or very light menstruation . But physicians typically apply a narrower definition, restricting the diagnosis of oligomenorrhea to women whose periods were regularly established before they d...
Source:Gale Encyclopedia of Children's Health
Amenorrhea is the medical term for the absence of menstruation . There are two types of amenorrhea, primary and secondary. Primary amenorrhea refers to delayed menarche (the first menstrual period) and is defined as any one of three conditions: th...
Source:Gale Encyclopedia of Children's Health
Amenorrhea is the absence of menstruation. There are two types of amenorrhea, primary and secondary. Primary amenorrhea is delayed menarche (the first menstrual period) and is defined as any one of three conditions: 1.) absence of menarche by age ...
Source:Gale Encyclopedia of Childhood and Adolescence
The absence of menstrual periods is called amenorrhea. Primary amenorrhea is the failure to start having a period by the age of 16. Secondary amenorrhea is more common and refers to either the temporary or permanent ending of periods in a woman wh...
Source:Gale Encyclopedia of Medicine
Amenorrhea is the absence of menstruation and is a symptom, not a diagnosis. Primary amenorrhea refers to the absence of the onset of menstruation by age 16 whether or not normal growth and secondary sexual characteristics are present, or the abse...
Source:Gale Encyclopedia of Cancer
Acne is a skin condition that causes whiteheads, blackheads, and inflamed red lesions (papules, pustules, and cysts) to form. These growths are commonly called pimples or "zits."
Source:ADAM
Date:December 11, 2009
Acne is a common inflammatory skin disease characterized by pimples on the face, chest, and back. It occurs when the pores of the skin become clogged with oil, dead skin cells, and/or bacteria.
Source:Gale Encyclopedia of Alternative Medicine
Acne is a skin disorder that leads to an outbreak of lesions called pimples or "zits." The most common form of the disease is called acne vulgaris—the rash that affects many adolescents. Acne vulgaris is triggered by the hormonal changes that occu...
Source:Gale Encyclopedia of Children's Health
Excessive growth of facial or body hair in women is called hirsutism.
Source:Gale Encyclopedia of Medicine
Abdominal bloating is a condition in which the abdomen (belly) feels full and tight.
Source:ADAM
Date:March 8, 2008
Primary infertility describes couples who have never been able to become pregnant after at least 1 year of unprotected sex (intercourse. Secondary infertility describes couples who have been pregnant at least once, but have not been able to become...
Source:ADAM
Date:March 17, 2009
Infertility is the failure of a couple to conceive a pregnancy after trying to do so for at least one full year. In primary infertility, pregnancy has never occurred. In secondary infertility, one or both members of the couple have previously conc...
Source:Gale Encyclopedia of Medicine
Infertility is the failure of a couple to conceive a pregnancy after trying to do so for at least one full year. In primary infertility, pregnancy has never occurred. In secondary infertility, one or both members of the couple have previously conc...
Source:Gale Encyclopedia of Alternative Medicine
Infertility is the failure to conceive a pregnancy after attempting for at least one full year. In primary infertility, pregnancy has never occurred. In secondary infertility, one or both members of the couple have previously conceived, but are un...
Source:Gale Encyclopedia of Nursing and Allied Health
A chronic inflammation of the sebaceous glands embedded in the skin. Acne is the chronic inflammation of the sebaceous glands, normally acquired in adolescence between the ages of 14 and 18, that usually resolves itself by the time the individual ...
Source:Gale Encyclopedia of Childhood and Adolescence
Acne is a common skin disease characterized by pimples on the face, chest, and back. It occurs when the pores of the skin become clogged with oil, dead skin cells, and bacteria.
Source:Gale Encyclopedia of Medicine
Any procedure or medication that interferes with the functioning of the testes or ovaries affects fertility. The choices made before cancer treatment begins can determine whether the patient will remain fertile after treatment. Prior to deciding o...
Source:Gale Encyclopedia of Cancer
Dysfunctional uterine bleeding (DUB) is abnormal bleeding from the vagina that is due to changes in hormone levels.
Source:ADAM
Date:September 2, 2009
Medical dictionaries define oligomenorrhea as infrequent or very light menstruation. But physicians typically apply a narrower definition, restricting the diagnosis of oligomenorrhea to women whose periods were regularly established before they de...
Source:Gale Encyclopedia of Medicine
With aging, a woman's breasts lose tissue and subcutaneous fat, reducing breast size and fullness. There is also a decrease in the number of mammary glands, which the body replaces with fat tissue. These changes make the breast less firm. The brea...
Source:ADAM
Date:October 27, 2008
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