Headache
Learn about the causes of Headache and treatments for Headache in the Symptoms Dictionary at HowStuffWorks.
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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: Hepatic Encephalopathy
Hepatic encephalopathy is brain and nervous system damage as a result of liver disorders. Learn about hepatic encephalopathy causes, symptoms, tests, treatment and prevention. See more »
Heart Attack And Acute Coronary Syndrome In-Depth
Heart attacks and acute coronary syndrome are two common results of heart disease. Learn about heart attacks and acute coronary syndrome causes.
See more »Gallstones And Gallbladder Disease In-Depth
Gallstones and gallbladder disease can cause pain and serious complications. Learn about gallstones and gallbladder disease prevention and treatment.
See more »Gastroesophageal Reflux Disease And Heartburn In-Depth
Gastroesophageal reflux disease and heartburn can be painful. Learn about gastropesophageal reflux disease and heartburn prevention and treatment.
See more »Glaucoma In-Depth
Glaucoma is disease of the optic nerve that can cause blindness if untreated. Learn about glaucoma risk factors, symptoms and treatment.
See more »Gout In-Depth
Gout is a common and very painful type of arthritis. Learn about gout risk factors, triggers, symptoms and treatment options.
See more »Headaches - Cluster In-Depth
Head injuries, classified as either closed or penetrating, are any trauma leading to scalp, skull or brain injury. Learn about head injury causes, symptoms, treatment and prevention.
See more »Headaches - Tension In-Depth
Nits or head lice are tiny insects living only in hair and their eggs are easily mistaken as dandruff. Learn about nits symptoms, tests and treatment.
See more »Heart Failure In-Depth
Get helpful heart disease resources, support, information and contacts on this page.
See more »Hepatitis In-Depth
Hepatitis is a disorder affecting the liver that can have serious effects. Learn about the types of hepatitis and available treatments.
See more »Herpes Simplex In-Depth
Herpes simplex virus is a common cause of infections of the skin and can lead to more serious infections. Learn about herpes simplex causes and treatment.
See more »High Blood Pressure In-Depth
High blood pressure can lead to hypertrophy and other medical problems. Learn about high blood pressure causes and medications.
See more »Hodgkin's Disease In-Depth
Hodgkin's disease is a type of cancer affecting the lymphatic system. Learn about Hodgkin's disease risk factors, symptoms and treatment.
See more »Hypothyroidism In-Depth
Hyperthyroidism accelerates metabolism, causing sudden weight loss, an irregular heartbeat, and other symptoms. Learn about hyperthyroidism.
See more »Insomnia In-Depth
Inspection, "looking at the patient (or body part)," is the first step in a physical examination. Learn about inspection definition.
See more »Galactosemia
Galactosemia, an inherited enzyme disorder, is the inability to metabolize galactose. Learn about galactosemia causes, symptoms, tests, treatment and prevention.
See more »Gallbladder Disease
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
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 »Ganglioneuroblastoma
Ganglioneuroblastoma information from HowStuffWorks. Learn about causes, symptoms and treatments of Ganglioneuroblastoma.
See more »Ganglioneuroma
Ganglioneuroma information from HowStuffWorks. Learn about causes, symptoms and treatments of Ganglioneuroma.
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