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No Menstrual Period (Amenorrhea) Learning Center
Causes could include:
- Morbid Obesity
- Excessive Exercise
- Mental Stress
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Use of certain medications
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Use of Birth Control Pills
- Underweight
- Thyroid Disorders
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Pituitary Disorders
- Pregnancy
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Primary Ovarian Failure
- Hyperthyroidism
- Anorexia Nervosa
- Congenital Heart Di...
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Ovarian Disorders
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Scarring of uterus
- Pituitary Neoplasms
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Hypothalamic Diseases
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Female Reproductive System Alteration
- Chromosome Abnormal...
- Breastfeeding
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Hormonal changes
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There are a number of possible causes of amenorrhea: Pregnancy: An adolescent with amenorrhea most likely does not have a serious underlying medical problem. All teenagers with amenorrhea should seek medical care, and an adolescent who has had sex...
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Emotional stress will sometimes prevent the brain from signaling the ovaries properly. It is not uncommon for a woman's period to be delayed when she is having problems with school, work, or relationships. A change in environment (the start of col...
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Normal menstrual bleeding occurs between menarche and menopause and has an average length of 28 days but varies from woman to woman. The normal menstrual cycle depends on cyclic changes in estrogen and progesterone levels, as well as the integrity...
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Amenorrhea can have many causes. Primary amenorrhea can be the result of hormonal imbalances, psychiatric disorders, eating disorders, malnutrition , excessive thinness or fatness, rapid weight loss, body fat content too low, and excessive physica...
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Obesity is a term used to describe body weight that is much greater than what is considered healthy. If you are obese, you have a much higher amount of body fat than is healthy or desirable. Adults with a body mass index (BMI, calculated as weight...
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Vertical sleeve gastrectomy is surgery to help with weight loss. The surgeon removes a large portion of your stomach. The smaller stomach limits the amount of food you can eat by making you feel full after eating small amounts of food. See also: G...
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Individuals with an exercise addiction are characterized by their compulsive exercise behaviors, an overinvolvement in exercise, and the presence of an activity disorder—meaning they exercise at a duration, intensity, and frequency beyond that req...
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Over the course of evolution, the human mind and body have developed means of handling stressful situations. Over the short term, such stress response pathways are highly adaptive, allowing a person to manage his or her resources in order to navig...
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A person is considered underweight if his or her body mass index (BMI) falls below a certain threshold (body mass index is a measure determined by a person's age, height, and weight). For infants and children, a BMI below the 10th percentile for a...
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The thyroid gland is located in the front of the neck, just below the voice box (larynx. It produces chemicals (hormones) that help the body control metabolism. Thyroid hormone is also produced in response to another hormone released by the pituit...
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Thyroid disorders fall into two general categories:(1) dysfunction of thyroid hormone production; and (2) development of thyroid enlargements, called goiters, which include generalized enlargement of the gland and benign and malignant nodules. Thy...
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Adolescent pregnancy is pregnancy in girls age 19 or younger.
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Pregnancy is the condition of having a developing embryo or fetus in the body. The union of an egg (ovum) with sperm is called fertilization, or conception, and it is this union that produces the embryo. Pregnancy includes the period from concepti...
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A pregnancy test measures a hormone called human chorionic gonadotropin (HCG. HCG is a hormone produced during pregnancy. It appears in the blood and urine of pregnant women as early as 10 days after conception. See also: HCG - urine; HCG - serum ...
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A great deal of public health resources is spent on pregnancy. It is clear that prenatal and neonatal health play a large role in determining the health of a population, and in fact, pregnancy outcomes are often used as an indicator of a nation's ...
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Prior to modern medicine, many mothers and their babies did not survive pregnancy and the birth process. Today, good prenatal care can significantly improve the quality of the pregnancy and the outcome for the infant and mother. Good prenatal care...
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Nutrition during the preconception period, as well as throughout a pregnancy, has a major impact on pregnancy outcome. Among prepregnancy considerations, the prepregnancy Body Mass Index (BMI), folic acid status, and socioeconomic status are the m...
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Hyperthyroidism is a condition in which the thyroid gland makes too much thyroid hormone. The condition is often referred to as an "overactive thyroid."
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Hyperthyroidism is the overproduction of thyroid hormones by an overactive thyroid.
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Hyperthyroidism is the overproduction of thyroid hormones by an overactive thyroid.
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Hyperthyroidism is the condition that reflects excessive concentrations of thyroid hormones, due to any cause. The resulting hypermetabolic state causes increased heat production and accelerates many of the bodies' processes. Common causes are Gra...
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Hyperthyroidism is the overproduction of thyroid hormones by an overactive thyroid gland.
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Anorexia nervosa is an eating disorder that involves limiting the amount of food a person eats. It results in starvation and an inability to stay at the minimum body weight considered healthy for the person's age and height. Persons with this diso...
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Anorexia nervosa is an eating disorder characterized by unrealistic fear of weight gain, self-starvation, and conspicuous distortion of body image. The name comes from two Latin words that mean "nervous inability to eat." In females who have begun...
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Anorexia nervosa is an eating disorder characterized by unrealistic fear of weight gain, self-starvation, and conspicuous distortion of body image. The name comes from two Latin words that mean nervous inability to eat. In females who have begun t...
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Anorexia nervosa is an eating disorder characterized by self-starvation, unrealistic fear of weight gain, and conspicuous distortion of body image.
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Anorexia nervosa (AN) is an eating disorder characterized by an intense fear of gaining weight and becoming fat. Because of this fear, the affected individual starves herself or himself, and the person's weight falls to about 85% (or less) of the ...
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A psychiatric disorder characterized by a distorted body image leading the person to believe that she is overweight even when she is dangerously underweight. Anorexia nervosa is a psychiatric disorder in which a person's (usually a girl's) distort...
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Anorexia nervosa is an eating disorder characterized by an extreme reduction in food intake leading to potentially life-threatening weight loss. This syndrome is marked by an intense, irrational fear of weight gain or excess body fat, accompanied ...
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The eating disorder known as anorexia nervosa is commonly described as "self-starvation." Characteristics of the disorder include a refusal to maintain a minimally normal weight, an intense fear of gaining weight, a disturbed and unrealistic body ...
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Congenital heart disease refers to a problem with the heart's structure and function due to abnormal heart development before birth. Congenital means present at birth.
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Congenital heart disease, also called congenital heart defect, includes a variety of malformations of the heart or its major blood vessels that are present at birth.
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Congenital heart disease, or congenital heart defect, includes a variety of structural problems of the heart or its major blood vessels, which are present at birth.
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Congenital heart disease, also called congenital heart defect, includes a variety of malformations of the heart or its major blood vessels that are present at the birth of a child.
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Congenital heart disease, also called congenital heart defect, includes a variety of malformations of the heart or its major blood vessels that are present at the birth of a child.
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A pituitary tumor is an abnormal growth in the pituitary gland, the part of the brain that regulates the body's balance of hormones.
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Pituitary tumors are abnormal growths in the pituitary gland.
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Pituitary tumors are abnormal growths on the pituitary gland. Some tumors secrete hormones normally made by the pituitary gland.
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Chromosomal abnormalities describe changes in the normal number of chromosomes or structural problems within the chromosomes themselves. These abnormalities occur when an egg or sperm with an incorrect number of chromosomes, or a structurally faul...
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Chromosomal abnormalities describe changes in the normal number of chromosomes or structural problems within the chromosomes themselves. These abnormalities occur when an egg or sperm with an incorrect number of chromosomes, or a structurally faul...
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Breastfeeding is giving human breast milk to infants to meet their nutritional needs. See also: Age-appropriate diet for children; Breastfeeding - self-care; Breastfeeding tips; Formula feeding; Overcoming breastfeeding problems.
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Also known as nursing, the practice of providing an infant or toddler with nutrition from mother's milk via direct sucking on the breast. Breastfeeding has nutritional, immunological, and developmental benefits for the child, as well as physiologi...
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Lactation refers to the formation of milk in the breasts during the period following childbirth . Breastfeeding is the process of the infant obtaining milk by suckling at the breast.
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Lactation is the medical term for breastfeeding, a natural method of feeding an infant from birth to the time he or she can eat solid food. Human milk contains the ideal amount of nutrients for the infant, and provides important protection from di...
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Before 1900, most mothers breastfed their infants. Breastfeeding rates declined sharply worldwide after 1920, when evaporated cow's milk and infant formula became widely available. These were promoted as being more convenient for mothers and more ...
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