Learn more about what ails you. Here are some common symptoms.
Common Symptoms:
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Diseases and Medical Conditions G-I provides down-to-earth, comprehensive definitions of hundreds of ailments and illnesses beginning with the letters G-I. Each listing identifies causes, incidence and risk factors, notes symptoms, outlines tests and discusses treatments and support groups where applicable.
Featured Article: Irritable Bowel Syndrome
Nervous indigestion or irritable bowel syndrome involves gut pain and diarrhea, constipation or both. Learn about nervous indigestion symptoms, tests and treatments. See more »
Hives
Hives are raised welts caused by the release of histamine as a reaction to allergens or illness. Learn about hive causes, symptoms, tests, treatment and prevention.
See more »Hodgkin’s Lymphoma
Hodgkin’s lymphoma is a malignancy of lymph tissue that may spread to lungs, liver or bone marrow. Learn about Hodgkin’s lymphoma causes, symptoms, tests, treatment and prevention.
See more »Homocystinuria
Homocystinuria is an inherited disorder of methionine amino acid metabolism. Learn about homocystinuria causes, symptoms, treatment and prevention.
See more »Hookworm
Hookworm, an infestation of the lungs and intestines by roundworms, increases risk of iron deficiency anemia. Learn about hookworm causes, symptoms, tests, treatment and prevention.
See more »Horner Syndrome
Horner’s syndrome, an injury to the sympathetic facial nerves, is caused for a variety of reasons. Learn about Horner’s syndrome causes, symptoms, tests, treatment and prevention.
See more »Hospital-acquired Pneumonia
Hospital-acquired pneumonia is a lung infection contracted from a hospital stay. Learn about hospital-acquired pneumonia causes, symptoms, treatment and prevention.
See more »Hot Tub Folliculitis
Hot tub folliculitis is an infection of the hair follicle by warm, wet residing bacteria. Learn about hot tub folliculitis causes, symptoms, treatment and prevention.
See more »Hunter Syndrome
Hunter syndrome causes abnormal facial appearance, organ function or early death due to a metabolic abnormality. Learn about hunter syndrome causes, symptoms, tests, treatment and prevention.
See more »Huntington's Disease
Huntington’s disease, caused by genetic faults, is a brain nerve cell degenerative disease. Learn about Huntington’s disease causes, symptoms, tests, treatment and prevention.
See more »Hurler Syndrome
Hurler syndrome, caused by enzyme deficiency, is an inherited progressive disease affecting many organs. Learn about Hurler syndrome causes, symptoms, tests, treatment and prevention.
See more »Hydatidiform Mole
Hydatidiform Mole information from HowStuffWorks. Learn about causes, symptoms and treatments of Hydatidiform Mole.
See more »Hydrocarbon Pneumonia
Hydrocarbon pneumonia is inflammation of the lungs from inhaling solvents or oily material. Learn about hydrocarbon pneumonia causes, symptoms, treatment and prevention.
See more »Hydrocele
Hydroceles are fluid-filled sacks along the spermatic cord causing painless swollen testicles. Learn about hydrocele causes, symptoms, tests, treatment and prevention.
See more »Hydrocephalus
Hydrocephalus is brain ventricle swelling from cerebral spinal fluid accumulation. Learn about hydrocephalus causes, symptoms, treatment and prevention.
See more »Hymenolepiasis
Hymenolepiasis is an infestation by either the dwarf or rat tapeworm. Learn about hymenolepiasis causes, symptoms, treatment and prevention.
See more »Hyperaldosteronism
Hyperaldosteronism information from HowStuffWorks. Learn about causes, symptoms and treatments of Hyperaldosteronism.
See more »Hypercalcemia
Hypercalcemia, excessive calcium in the blood, can cause numerous complications. Learn about hypercalcemia causes, symptoms, tests, treatment and prevention.
See more »Hypercoagulable States
Hypercoagulable states are conditions that can lead to abnormal blood clotting. Learn about hypercoagulable state causes, symptoms, treatment and prevention.
See more »Hyperemesis Gravidarum
Hyperemesis gravidarum is extreme, persistent vomiting during pregnancy. Learn about hyperemesis gravidarum causes, symptoms, treatment and prevention.
See more »Hyperglycemia - Infants
Hyperglycemia – infants is an abnormally high blood sugar level in an infant. Learn about infant hyperglycemia causes, symptoms, treatment and prevention.
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Common Conditions:
