In medicine, a disease is asymptomatic when it is at a stage where the patient does not experience symptoms. By their nature, asymptomatic diseases are not usually discovered until the patient undergoes medical tests (X-rays or other investigations). Medicine on the Web NLM (National Library of Medicine, contains resources for patients and healthcare professionals) Virtual Hospital (digital health sciences library by the University of Iowa) Online Medical Dictionary Collection of links to free medical resources Category: Medicine ... A disease is any abnormal condition of the body or mind that causes discomfort, dysfunction, or distress to the person affected or those in contact with the person. ... The term symptom (from the Greek syn = con/plus and pipto = fall, together meaning co-exist) has two similar meanings in the context of physical and mental health: A symptom may loosely be said to be a physical condition which shows that one has a particular illness or disorder (see... In the NATO phonetic alphabet, X-ray represents the letter X. An X-ray picture (radiograph) taken by Röntgen An X-ray is a form of electromagnetic radiation with a wavelength approximately in the range of 5 pm to 10 nanometers (corresponding to frequencies in the range 30 PHz...
Some diseases remain asymptomatic for a remarkably long time, including some forms of cancer. When normal cells are damaged or old they undergo apoptosis; cancer cells, however, avoid apoptosis. ...
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