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Drugs and diseases reference index

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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «S»:

  1. Snake bites Snake bites
    Snake bites occur when a snake bites the skin, and are medical emergencies if the snake is poisonous. Considerations Snake bites can be deadly if not treated quickly. Children are at higher risk for death or serious complications due to snake bites because of their smaller body size. The right anti...
  2. Sneezing Sneezing
    A sneeze is a sudden, forceful, involuntary burst of air through the nose and mouth. See also: Allergen Allergic rhinitis Allergy to mold, dander, dust Allergy and asthma resources Common cold Vasomotor rhinitis Considerations Sneezing is caused by irritation to the mucous membrane...
  3. Snoring Snoring
    Snoring is a loud, hoarse, or harsh breathing sound that occurs during sleep. Considerations Snoring is common in adults and is not necessarily a sign of an underlying disorder. Sometimes, however, snoring can be a sign of a sleep disorder called sleep apnea. This means you have periods when you com...
  4. Social phobia Social phobia
    Social phobia is a persistent and irrational fear of situations that may involve scrutiny or judgment by others, such as parties and other social events. Causes People with social phobias fear and avoid situations in which they may be subject to the scrutiny of others. It may begin in adolescence a...
  5. Sodium - blood Sodium - blood
    This test measures the concentration of sodium in the blood. How the Test is Performed Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upp...
  6. Sodium - urine Sodium - urine
    The sodium urine test measures the amount of salt (sodium) in a urine sample. Sodium can also be measured in a blood sample. See also: Sodium - blood test How the Test is Performed This test may be done using a random urine sample or a 24-hour urine collection. If a 24-hour urine sample is needed:...
  7. Sodium in diet Sodium in diet
    Sodium is an element that the body needs to function properly. Function The body uses sodium to regulate blood pressure and blood volume. Sodium is also critical for the functioning of muscles and nerves. Food Sources Sodium occurs naturally in most foods. The most common form of sodium is sodium c...
  8. Solitary pulmonary nodule Solitary pulmonary nodule
    A solitary pulmonary nodule is a round or oval spot (lesion) in the lungs that is seen with a chest x-ray or CT scan. Causes More than half of all solitary pulmonary are noncancerous (benign). Benign nodules have many causes, including old scars and infections. Infectious granulomas are the cause o...
  9. Soluble vs. insoluble fiber Soluble vs. insoluble fiber
    There are two different types of fiber -- soluble and insoluble. Both are important for health, digestion, and preventing diseases. Soluble fiber attracts water and turns to gel during digestion. This slows digestion. Soluble fiber is found in oat bran, barley, nuts, seeds, beans, lentils, peas, a...
  10. Somatization disorder Somatization disorder
    Somatization disorder is a long-term (chronic) condition in which a person has physical symptoms that involve more than one part of the body, but no physical cause can be found. The pain and other symptoms people with this disorder feel are real, and are not created or faked on purpose (malingering)...
  11. Somatoform pain disorder Somatoform pain disorder
    Somatoform pain disorder is pain that is severe enough to disrupt a person's everyday life. The pain is like that of a physical disorder, but no physical cause is found. The pain is thought to be due to psychological problems. The pain that people with this disorder feel is real. It is not created o...
  12. Sore throat Sore throat
    A sore throat is discomfort, pain, or scratchiness in the throat. A sore throat often makes it painful to swallow. Considerations Sore throats are common. Most of the time the soreness is worse in the morning and improves as the day progresses. Like colds, the vast majority of sore throats are caus...
  13. Soy Soy
    The soybean has been a part of the human diet for almost 5,000 years. Unlike most plant foods, the soybean is high in protein and is considered equivalent to animal foods in terms of the quality of the protein it contains. Function Soy in your diet can lower cholesterol. There are many scientific s...
  14. Spasmodic dysphonia Spasmodic dysphonia
    Spasmodic dysphonia is difficulty speaking due to spasms (dystonia) of the muscles that control the vocal cords. Causes In the past, spasmodic dysphonia was thought to be caused by a psychological, instead of a physical problem. However, many people now believe that it stems from a problem in the b...
  15. Spasmus nutans Spasmus nutans
    Spasmus nutans is a disorder affecting infants and young children. It involves rapid, uncontrolled eye movements, head bobbing, and occasionally, abnormal positioning of the neck. See also: Nystagmus Causes Most cases of spasmus nutans begin between age 4 months and 1 year. It usually goes away by...