ILLNESSOPEDIA

Free Online Database Of Diseases, Illnesses & Ailments

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Here you can look through thousands of and diseases, ailments, medical conditions and illnesses. You can find the symptoms. Read about any ailment's diagnosis and find medications that can be used and the correct treatments that are needed.

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Diseases, Illnesses & Ailments Starting from Letter H


  1. H. Pylori Infection
    H. pylori infection occurs when a bacterium called Helicobacter pylori (H. pylori) thrives in the stomach or the first part of the small intestine. [read more]

  2. Haemophilus Influenzae Type B
    Hib is an bacterium which is said to be responsible for some three million severe illnesses and an estimated 386,000 mortalities per year mainly through pneumonia and meningitis. Affected children range from five years old and below. In developing countries where a large majority of Hib deaths occur, pneumonia is accounted for bigger number of mortalities than meningitis. [read more]

  3. Haemophilus Influenzae Type B
    Hib is an bacterium which is said to be responsible for some three million severe illnesses and an estimated 386,000 mortalities per year mainly through pneumonia and meningitis. Affected children range from five years old and below. In developing countries where a large majority of Hib deaths occur, pneumonia is accounted for bigger number of mortalities than meningitis. [read more]

  4. Hageman Factor Deficiency
    Hageman factor deficiency is an uncommon hereditary disorder which is characterized by the low plasma protein known as factor XII. [read more]

  5. Hailey Hailey Disease
    Hailey-hailey disease is a skin anomaly in which clusters of small vesicles that cause ruptures in the skin. These lesions cause pigmentation once they dry up and get eroded. They usually develop in the neck, groin and genital areas and spread towards the different skin-covered areas. It is an autosomal dominant disorder. [read more]

  6. Hair-Pulling Disease
    Trichotillomania (or hair-pulling disorder) is a type of mental illness in which people have an irresistible urge to pull out their hair, whether it's from their scalp, their eyebrows or other areas of their body. Hair pulling from the scalp often leaves them with patchy bald spots on their head, which they may go to great lengths to disguise or cover. [read more]

  7. Hairy Cell Leukemia
    Hairy cell leukemia is a slow-growing cancer characterized by overproduction of B cells in the bone marrow. These B cells, called lymphocytes, are a kind of white blood cell needed to fight infection. The bone marrow is unable to produce other types of normal cells as well, including platelets that heal bleeding, and red blood cells that carry oxygen. Hairy cell leukemia is a rare disease, constituting only 2% of all leukemia cases. [read more]

  8. Hairy Leukoplakia
    Hairy leukoplakia is a distinct white, irregular-shaped plaque found on the side of the tongue. This lesion is common among patients with HIV. The lesions usually contain fungi, bacteria or viruses, but are not considered contagious. Hairy leukoplakia can be treated by controlling the spread of HIV. [read more]

  9. Hairy Tongue
    Hairy tongue is a condition that affects both humans and animals, characterized by a darkening of the tongue, sometimes hair growth. A fungus causes the dark appearance on the tongue, although it is a harmless condition. Most common affected are the elderly, tobacco smokers, and users of antibiotics. [read more]

  10. Hajdu-Cheney Syndrome
    Hajdu-Cheney syndrome is a genetic disorder of the connective tissue which causes severe and excessive bone resorption leading to osteoporosis. [read more]

  11. Halitosis
    Halitosis, oral malodor (scientific term), breath odor, foul breath, fetor oris, fetor ex ore, or most commonly bad breath are terms used to describe noticeably unpleasant odors exhaled in breathing – whether the smell is from an oral source or not. [read more]

  12. Hallermann Streff Syndrome
    Hallerman-Streiff syndrome is a genetic defect characterized by malformations in the craniofacial area, ocular abnormalities, dental deformities, skin atrophy and short stature. [read more]

  13. Hallervorden-Spatz Disease
    Hallervorden-Spatz disease (HSD) is a degenerative disease affecting the brain. The condition can lead to parkinsonism. Cases may be familial or occur sporadically. Neurodegeneration and excess iron in the brain also occur. [read more]

  14. Hallucination
    Hallucination is the term used to describe false perceptions towards one's senses; a person who hallucinates behaves in response to the things he sees and/or hears despite the fact that the things he perceives are not actually there. [read more]

  15. Hallux Valgus
    Hallux valgus, also known as bunions, is a condition characterized by a structural deformity in the bone as well as the joint between the big toe and foot. This is a typically painful condition. The big toe may turn facing the second toe, a condition called displacement. The tissue around the joint area is tender and swollen. [read more]

  16. Hamburger Disease
    Hamburger disease is another name for E. coli disease. It is an illness caused by consumption of contaminated and raw food. It is present among meat products such as hamburger patties. [read more]

  17. Hammertoe
    A hammertoe is a toe that's curled because of a bend in the middle joint of a toe. [read more]

  18. Hand Foot Mouth Disease
    Hand-foot-mouth disease is a common disease characterized by mouth sores, fever, and rashes. Enteroviruses from the family Picornaviridae causes the disease. It is common in infants and children, and is moderately contagious. Contact with feces or mucus of an infected person can trigger contagion. [read more]

  19. Hand Wringing Rett Syndrome
    Hand writing Rett syndrome, or more commonly known as Rett syndrome, is a childhood neurodevelopmental disorder. [read more]

  20. Hand-Schuller-Christian Disease
    Hand-Schuller-Christian disease is a condition which lipids accumulate in the body and manifest as histiocytic granuloma in bones, particularly in the skull, the skin and viscera and which is often accompanied by hepatosplenomegaly and lymphadenopathy. [read more]



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