Drugs Information Online
Drugs and diseases reference index

Drugs and diseases reference index
Search
EN

Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «H»:

  1. H1N1 (swine) influenza H1N1 (swine) influenza
    The H1N1 virus (swine flu) is a new flu virus strain that is causing illnesses in humans worldwide. In June 2009, the World Health Organization declared a worldwide swine flu pandemic. Causes Earlier forms of the H1N1 virus were found in pigs. Over time, the virus changed (mutated) and can now infe...
  2. H1N1 (swine) influenza vaccine H1N1 (swine) influenza vaccine
    This vaccine protects people against swine flu. Information The H1N1 virus (swine flu) is a new flu virus strain that is causing illnesses in humans worldwide. Symptoms include fever of 100 °F or more and a sore throat or a cough. Chills, sore muscles, and headache may also be present. The large...
  3. Hair loss Hair loss
    Partial or complete loss of hair is called alopecia. Considerations Hair loss usually develops gradually and may be patchy or all over (diffuse). You lose roughly 100 hairs from your head every day. The average scalp contains about 100,000 hairs. Each individual hair survives for an average of 4 1/...
  4. Hair transplant Hair transplant
    A hair transplant is a surgical procedure to improve baldness. Description During a hair transplant, a physician moves hairs from an area of thick growth to bald areas. Most hair transplants are performed in an office setting under local anesthesia. You should only experience minimal pain. After th...
  5. Hairy cell leukemia Hairy cell leukemia
    Hairy cell leukemia (HCL) is a rare cancer of the blood. It affects B cells, a type of white blood cell (lymphocyte). Causes HCL is caused by the abnormal growth of B cells. The cells can look "hairy" under the microscope because they have fine projections coming from their surface. HCL can lead to...
  6. Hallervorden-Spatz disease Hallervorden-Spatz disease
    Hallervorden-Spatz disease is a movement disorder that is passed down through families (inherited). Causes Hallervorden-Spatz usually begins in childhood. Most cases of Hallervorden-Spatz are due to a defect in a gene that makes a protein called pantothenate kinase 2. Patients with this genetic def...
  7. Hallucinations Hallucinations
    Hallucinations involve sensing things while awake that appear to be real, but instead have been created by the mind. Considerations Common hallucinations include: Feeling bodily sensations, such as a crawling feeling on the skin or the movement of internal organs Hearing sounds, such as music, foo...
  8. Ham test Ham test
    The Ham test is done to diagnose paroxysmal nocturnal hemoglobinuria (PNH). The test checks whether red blood cells become more fragile when they are placed in mild acid. How the Test is Performed Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. Th...
  9. Hammer toe Hammer toe
    Hammer toe is a deformity of the toe, in which the end of the toe is bent downward. Causes Hammer toe usually affects the second toe, although it may also affect the other toes. The toe goes into a claw-like position. The condition may occur as a result of pressure from a bunion. A corn on the top ...
  10. Hand or foot spasms Hand or foot spasms
    Spasms are contractions of the muscles of the hands, thumbs, feet, or toes. Spasms are usually brief, but they can be severe and painful. See also: Muscle cramps Considerations Depending on the cause, the following symptoms may be present: Cramping Fatigue Muscle weakness Numbness, tingling, ...
  11. Hand x-ray Hand x-ray
    A hand x-ray is a medical image of one or both hands. How the Test is Performed X-rays are a form of electromagnetic radiation like light, but of higher energy. They can pass through the body to form an image on film. Structures that are dense (such as bone) will appear white, air will be black, an...
  12. Hand-foot-mouth disease Hand-foot-mouth disease
    Hand-foot-mouth disease is a relatively common infection viral infection that usually begins in the throat. A similar infection is herpangina. Causes Hand-foot-and-mouth disease (HFMD) is most commonly caused by coxsackievirus A16, a member of the enterovirus family. The disease is not spread from ...
  13. Hangover treatment Hangover treatment
    Here are tips on preventing a hangover: Drink slowly and on a full stomach. Keep in mind that if you are a small person, the effects of alcohol consumption are greater on you than on a larger person. Drink only in moderation. The National Institute on Alcohol Abuse and Alcoholism recommends that wo...
  14. Hantavirus Hantavirus
    Hantavirus is a disease spread by rodents that is similar to the flu. Causes Hantavirus has probably caused people to get sick for years in the United States, but it was not recognized until recently. In 1993 there was an outbreak of fatal respiratory illness on an Indian reservation at the border ...
  15. Haptoglobin Haptoglobin
    Haptoglobin is a protein produced by the liver. It connects to a certain type of hemoglobin in the blood. A blood test can tell how much haptoglobin you have in your blood. How the Test is Performed Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. ...