Headache
Learn about the causes of Headache and treatments for Headache in the Symptoms Dictionary at HowStuffWorks.
See more »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.
Genital herpes is a contagious sexually transmitted viral infection causing painful genital blisters. Learn about genital herpes causes, symptoms, tests, treatment and prevention. See more »
Learn about the causes of Headache and treatments for Headache in the Symptoms Dictionary at HowStuffWorks.
See more »Heart attacks and acute coronary syndrome are two common results of heart disease. Learn about heart attacks and acute coronary syndrome causes.
See more »Get helpful heart disease resources, support, information and contacts on this page.
See more »Galactosemia, an inherited enzyme disorder, is the inability to metabolize galactose. Learn about galactosemia causes, symptoms, tests, treatment and prevention.
See more »Gallbladder disease is any condition causing improper or cessation of gallbladder functions. Learn about gallbladder disease types, causes, symptoms, tests, treatment and prevention.
See more »Gallstones are crystalline formations in the gallbladder due to abnormal substance concentration in bile. Learn about gallstones causes, symptoms, tests, treatment and prevention.
See more »Gallstones and gallbladder disease can cause pain and serious complications. Learn about gallstones and gallbladder disease prevention and treatment.
See more »Ganglioneuroblastoma information from HowStuffWorks. Learn about causes, symptoms and treatments of Ganglioneuroblastoma.
See more »Ganglioneuroma information from HowStuffWorks. Learn about causes, symptoms and treatments of Ganglioneuroma.
See more »Gangrene is the death of tissue in part of the body due to blood supply loss, injury or infection. Learn about gangrene causes, symptoms, tests, treatment and prevention.
See more »Gas gangrene is a severe form of gangrene caused by bacterial infection. Learn about gas gangrene causes, symptoms, treatment and prevention.
See more »Gastric cancers are malignancies of the stomach and occur as several different types. Learn about gastric cancer causes, symptoms, tests, treatment and prevention.
See more »Gastric ulcers are breaks in stomach tissue lining due to a pepsin enzyme and acid imbalance. Learn about gastric ulcer causes, symptoms, tests, treatment and prevention.
See more »Gastritis is an inflammation of the stomach lining and is caused by a variety of irritants. Learn about gastritis causes, symptoms, tests, treatment and prevention.
See more »Acute gastritis is sudden inflammation of the stomach lining. Learn about actute gastritis causes, symptoms, treatment and prevention.
See more »Chronic gastritis is prolonged and persistent stomach lining inflammation from age or bacterial infection. Learn about chronic gastritis causes, symptoms, tests, treatment and prevention.
See more »Gastroesophageal reflux disease (GERD) is irritation of the esophagus from partially digested food. Learn about GERD causes, symptoms, tests, treatment and prevention.
See more »Gastroesophageal reflux disease and heartburn can be painful. Learn about gastropesophageal reflux disease and heartburn prevention and treatment.
See more »Gastroesophageal reflux in infants is the movement of stomach contents up the esophagus in infants. Learn about gastroesophageal reflux in infants causes, symptoms, treatment and prevention.
See more »Gastrointestinal perforations are holes in the intestines or stomach requiring emergency surgery. Learn about gastrointestinal perforation causes, symptoms, tests, treatment and prevention.
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