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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «G»:

  1. Gram stain of tissue biopsy Gram stain of tissue biopsy
    Gram stain of tissue biopsy test involves using crystal violet stain to test a sample of tissue taken from a biopsy. The Gram stain method can be applied to almost any clinical specimen and is an excellent technique for making a general, basic identification of the type of bacteria present in the sa...
  2. Gram stain of urethral discharge Gram stain of urethral discharge
    A gram stain of urethral discharge is a test used to identify bacteria in fluid from the tube that drains urine from the bladder (urethra). How the Test is Performed Fluid from the urethra is collected on a cotton swab. A sample from this swab is applied in a very thin layer to a microscope slide. ...
  3. Granulocyte Granulocyte
    Granulocytes are a type of white blood cell that includes neutrophils, eosinophils, and basophils. They are called granulocytes because they are made of small granules, which contain important proteins. Granulocytes help the body fight bacterial infections. Persons who have lower numbers of granuloc...
  4. Granuloma annulare Granuloma annulare
    Granuloma annulare is a long-term (chronic) skin disease consisting of a rash with reddish bumps arranged in a circle or ring. Causes Granuloma annulare most often affects children and young adults. It is slightly more common in girls. The condition is usually seen in otherwise healthy people. Occa...
  5. Granuloma inguinale Granuloma inguinale
    Granuloma inguinale is a sexually transmitted disease that is rarely seen in the United States. Causes Granuloma inguinale is caused by the bacteria Calymmatobacterium granulomatis. The disease is commonly found in tropical and subtropical areas such as Southeast India, Guyana, and New Guinea, but ...
  6. Grass allergy Grass allergy
    Many people are allergic to pollens from grass and weeds. Such allergies usually occur in the late spring and summer. This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such a...
  7. Grass and weed killer poisoning Grass and weed killer poisoning
    Many weed killers contain dangerous chemicals that are harmful if swallowed. This article discusses poisoning by swallowing weed killers containing a chemical called glyphosate. This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an e...
  8. Graves disease Graves disease
    Graves disease is an autoimmune disorder that leads to overactivity of the thyroid gland (hyperthyroidism). Causes The thyroid gland is an important organ of the endocrine system. It is located in the front of the neck just below the voice box. This gland releases the hormones thyroxine (T4) and tr...
  9. Gray syndrome Gray syndrome
    Gray syndrome is a dangerous condition that occurs in newborns (especially premature babies) who are given the drug chloramphenicol. Causes Chloramphenicol is a drug used to fight bacterial infections, including meningitis. If given to a newborn, however, high doses of this drug can trigger a...
  10. Grief Grief
    Grief is a reaction to a major loss. It is most often an unhappy and painful emotion. Causes Grief may be triggered by the death of a loved one. People also can experience grief if they have an illness for which there is no cure, or a chronic condition that affects their quality of life. The end of...
  11. Groin lump Groin lump
    A groin lump is localized swelling in the groin area (where the upper leg meets the lower abdomen). It may be firm or soft, tender or not painful at all. Considerations All groin lumps should be examined by your health care provider. Causes Allergic reaction Cancer Drug reaction Harmless (benign...
  12. Groin pain Groin pain
    Groin pain refers to discomfort in the area where the abdomen ends and the legs begin. This article focuses on groin pain in men. Considerations In males, the terms "groin" and "testicle" are sometimes used interchangeably. But what causes pain in one won't necessarily do so in the other. Causes Co...
  13. Group B streptococcal septicemia of the newborn Group B streptococcal septicemia of the newborn
    Group B streptococcal septicemia is a severe bacterial infection that affects newborn infants. See also: Neonatal sepsis Causes The term "septicemia" refers to an infection in the bloodstream that may travel to different body organs. Group B streptococcal septicemia is caused by the bacterium Stre...
  14. Growth hormone deficiency - children Growth hormone deficiency - children
    Growth hormone deficiency refers to abnormally short height in childhood due to the lack of growth hormone. See also: Short stature Causes Growth hormone is produced in the pituitary gland, which is located at the base of the brain. Different hormones made in the brain tell the pituitary gland h...
  15. Growth hormone stimulation test Growth hormone stimulation test
    The growth hormone (GH) stimulation test measures the level of growth hormone (GH) in the blood after you receive medication that triggers the release of GH, such as arginine or GH-releasing hormone. The test measures the ability of the pituitary gland to release GH. See also: Growth hormone defic...