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The cause of hypogonadism may be "primary" or "central." In primary hypogonadism, the ovaries or testes themselves do not function properly. Some causes of primary hypogonadism include:
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Sex is determined at the moment of conception by sex chromosomes. Females have two X chromosomes, while males have one X and one Y chromosome. If the male sperm with the Y chromosome fertilizes an egg, the baby will be male. This is true throughou...
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There are a number of causes of hypogonadism, including stress, elevated prolactin levels, and several genetic disorders. Sex is determined at the moment of conception by sex chromosomes. Females have two X chromosomes, while males have one X and ...
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Turner syndrome is a genetic condition in which a female does not have the usual pair of two X chromosomes.
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Turner syndrome is a chromosomal disorder affecting females wherein one of the two X chromosomes is defective or completely absent.
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A genetic disorder caused by a missing X chromosome that occurs only in fernales. Victims of Turner syndrome are characterized by short stature, absence of secondary sexual characteristics, infertility, and a number of other physical abnormalities...
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Turner syndrome is a chromosomal disorder affecting females wherein one of the two X-chromosomes is defective or completely absent.
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Turner syndrome is a chromosomal disorder affecting females wherein one of the two X-chromosomes is defective or completely absent.
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Klinefelter syndrome is the presence of an extra X chromosome in a male.
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Klinefelter syndrome is a chromosome disorder in males. People with this condition are born with at least one extra X chromosome.
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Klinefelter syndrome is a chromosome disorder in males that results in hypogonadism (small penis and small firm testicles). People with this condition are born with at least one extra X chromosome.
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Klinefelter syndrome is a chromosome disorder in males. People with this condition are born with at least one extra X chromosome.
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Klinefelter syndrome is a chromosome disorder in males. People with this condition are born with at least one extra X chromosome.
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A condition affecting males that is caused by the presence of extra X chromosomes. Klinefelter's syndrome, also known as primary micro-orchidism, affects males only. A normal male has one pair of sex chromosomes made up of one X and one Y. In Klin...
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The best way to stay healthy during travel is to prepare before you leave and take appropriate preventive measures while traveling. Different areas of the world have different diseases and require different precautions. Factors that contribute to ...
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An infection is a condition in which viruses, bacteria, fungi, or parasites enter the body and cause a state of disease. Such invaders are called pathogens. They damage cells of the body by adhering to and damaging the cell walls, releasing toxic ...
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Although the word meningitis suggests an inflammation of the meninges only, there is always some involvement of the most superficial parts of the brain that are contiguous to the meninges. Often there are also alterations in the flow of cerebrospinal fluid (CSF).
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Infection is the invasion and replication of microorganisms— viruses , bacteria , protozoa, or fungi —in body tissues.
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The phrase "filth diseases" was coined in 1858 by British physician Charles Murchison to describe a class of conditions, mostly caused by infectious pathogens, that were associated with squalid living conditions—the overcrowded, unsanitary, and ve...
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The term "emerging infection," first widely used in the early 1990s, refers to newly identified and previously unknown infectious agents that cause public health problems either locally or internationally. Their impact, in terms of economic reperc...
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A communicable disease is an illness caused by a specific infectious agent or its toxic products. It arises through transmission of that agent or its products from an infected person, animal, or inanimate reservoir to a susceptible host, either di...
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The tropics are usually defined as that part of the equatorial world bounded by the tropics of Cancer and Capricorn. Defining a tropical infectious disease is not as straightforward. Almost all infectious diseases can be found in the tropics; ther...
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Hemochromatosis is a disorder that interferes with the body's ability to break down iron, and results in too much iron being absorbed from the gastrointestinal tract.
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Hemochromatosis is an inherited blood disorder that causes the body to retain excessive amounts of iron. This iron overload can lead to serious health consequences, most notably cirrhosis of the liver.
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Iron is a vital component of heme, the component of hemoglobin that transports oxygen in the blood. Iron deficiency is the world's most common cause of anemia (blood with low hemoglobin and red blood cell components). While some plants have modest...
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Iron is a mineral that the human body uses to produce the red blood cells (hemoglobin) that carry oxygen throughout the body. It is also stored in myoglobin, an oxygen-carrying protein in the muscles that fuels cell growth.
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Hemochromatosis is an inherited blood disorder that causes the body to retain excessive amounts of iron. This iron overload can lead to serious health consequences, most notably cirrhosis of the liver.
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Hemochromatosis is an inherited blood disorder that causes the body to retain excessive amounts of iron. This iron overload can lead to serious health consequences, most notably cirrhosis of the liver.
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Iron tests consist of four assays performed on serum or plasma to aid in the diagnosis and treatment of iron deficiency or iron overload. These tests are serum iron, total iron binding capacity (TIBC), serum ferritin, and serum transferrin. Iron i...
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Iron tests are a group of blood tests that are done to evaluate the iron level in blood serum, the body's capacity to absorb iron, and the amount of iron actually stored in the body. Iron is an essential trace element; it is necessary for the form...
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Conditions with a link to the individual's genetic make-up. Genetic disorders are conditions that can be traced to an individual's heredity. Many of these disorders are inherited and are governed by the same genetic rules that determine dimples an...
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Any unusual variation or abnormality in the shape, structure, and/or function of an organ, body part, or tissue is commonly referred to as a birth defect. However, congenital anomaly is the more accurate and preferred term, since birth defect can ...
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Variations within the DNA sequence of a particular gene affect its function, and may cause or predispose an individual a particular disease. Alterations in the genome may increase the frequency of disorder and disease with entire populations. Alth...
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Variations within the DNA sequence of a particular gene affect its function and may cause or predispose an individual a particular disease. Alterations in the genome may increase the frequency of disorder and disease with entire populations. Altho...
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The traditional method used to study an inherited disease is to observe the pattern of its distribution in families through examination of a pedigree, the construction of which begins with the individual first known to have the disease. The pedigr...
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An autoimmune disorder is a condition that occurs when the immune system mistakenly attacks and destroys healthy body tissue. There are more than 80 different types of autoimmune disorders. See also: Immune response
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Autoimmune disorders are conditions in which a person's immune system attacks the body's own cells, causing tissue destruction.
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Autoimmune disorders are conditions in which a person's immune system attacks the body's own cells, causing tissue destruction.
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Diseases in which the immune system attacks the body's own healthy tissues, forming antibodies in an assault on mistakenly identified "foreign invaders. " Autoimmune disorders occur when the body's immune system loses its ability to recognize the ...
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Malnutrition is the condition that occurs when your body does not get enough nutrients.
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Nutritional deficiencies occur when a person's nutrient intake consistently falls below the recommended requirement. Nutritional deficiencies can lead Children between 10–19 years of age face serious nutritional deficiencies worldwide, according t...
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The nutritional requirements of the human body reflect the nutritional intake necessary to maintain optimal body function and to meet the body's daily energy needs. Malnutrition (literally, "bad nutrition ") is defined as "inadequate nutrition," a...
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Malnutrition is the condition that develops when the body does not get the right amount of the vitamins , minerals , and other nutrients it needs to maintain healthy tissues and organ function.
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Malnutrition is a condition that develops when the body does not get the proper amount of protein, energy (calories), vitamins , and other nutrients it needs to maintain healthy tissues and organ function.
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Oophorectomy is the surgical removal of one or both ovaries. It is also called ovariectomy. If one ovary is removed, a woman may continue to menstruate and have children. If both ovaries are removed, menstruation stops and a woman loses the abilit...
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Oophorectomy is the surgical removal of one or both ovaries. It is also called ovariectomy. If one ovary is removed, a woman may continue to menstruate and have children. If both ovaries are removed, menstruation stops and a woman loses the abilit...
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Undescended testicle repair is surgery to correct testicles that have not dropped down into the correct position in the scrotum. See also: Undescended testicle
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Testicular surgery is any surgical operation on the testicles.
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