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Fabry Disease
Fabry disease is an inherited lysosomal storage disorder caused by reduced or absent activity of the enzyme alpha-galactosidase A. Without enough of…
Fanconi Anemia
Fanconi anemia is a rare inherited DNA-repair disorder that can affect the bone marrow's ability to make healthy blood cells. It may…
Fatigue
Fatigue is a persistent lack of physical or mental energy that can make ordinary activities feel difficult. It may feel like reduced…
Fatty Liver Disease
Fatty liver disease is a medical condition in which too much fat accumulates inside liver cells. It may affect people with metabolic…
Febrile Seizures
Febrile seizures are seizures associated with a fever in young children, usually between about 6 months and 5 years of age. A…
Female Infertility
Female infertility means having difficulty becoming pregnant or carrying a pregnancy to term. It may result from problems with ovulation, the reproductive…
Femoral Hernia
A femoral hernia occurs when tissue, such as part of the intestine or fatty tissue, pushes through a weak spot near the…
Ferritin Blood Test
Ferritin is a protein that stores iron in your body. A ferritin blood test estimates your stored iron reserves, which is different…
Fever
Fever is a temporary rise in body temperature. It often happens when the immune system responds to an infection or inflammation. Feeling…
Fibroadenoma
A fibroadenoma is a noncancerous, solid breast lump made of glandular and connective tissue. It is most commonly found during the reproductive…
Fibroids
Fibroids are common, noncancerous growths made of uterine muscle and connective tissue. They can vary in number, size, and location, growing within…
Fibromyalgia
Fibromyalgia is a long-term medical condition that causes widespread pain and increased sensitivity to touch or pressure. Common associated symptoms include fatigue,…
Flat Feet
Flat feet are a foot shape in which the inner arch is low or not visible. When a person stands, the arch…
Folate Deficiency
Folate deficiency occurs when the body does not have enough folate, a B vitamin needed to make healthy red blood cells and…
Folliculitis
Folliculitis is inflammation or infection around one or more hair follicles, the small openings where hairs grow. It can cause red or…
Food Allergy
Food allergy is an immune reaction to specific proteins in a food. Even a small amount may trigger symptoms in some people.…
Foreign Body In Ear
A foreign body in ear means that an object is lodged in the outer ear canal. Examples include insects, beads, small toys,…
Frequent Urination
Frequent urination means needing to pass urine more often than is usual for you. There is no single number of bathroom visits…
Frequent Urination At Night
Frequent urination at night, also called nocturia, means waking from sleep to urinate one or more times. An occasional trip to the…
Frozen Shoulder
Frozen shoulder, also called adhesive capsulitis of the shoulder, occurs when the capsule of tissue surrounding the shoulder joint becomes thick, tight…
Furuncle
A furuncle, commonly called a boil, is a deep bacterial infection that develops around a hair follicle and nearby skin. It often…
