Asymptomatic: Difference between revisions
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==Importance== | ==Importance== | ||
Knowing that a condition is asymptomatic is important because: | Knowing that a condition is asymptomatic is important because: | ||
* It may be contagious, and the contribution of asymptomatic and pre-symptomatic infections to the transmission level of a disease helps set the required control measures to keep it from spreading.<ref>{{Cite journal|last1=Buitrago-Garcia|first1=Diana|last2=Egli-Gany|first2=Dianne|last3=Counotte|first3=Michel J.|last4=Hossmann|first4=Stefanie|last5=Imeri|first5=Hira|last6=Ipekci|first6=Aziz Mert|last7=Salanti|first7=Georgia|last8=Low|first8=Nicola|date=2020-09-22|title=Occurrence and transmission potential of asymptomatic and presymptomatic SARS-CoV-2 infections: A living systematic review and meta-analysis|journal=PLOS Medicine|language=en|volume=17|issue=9| | * It may be contagious, and the contribution of asymptomatic and pre-symptomatic infections to the transmission level of a disease helps set the required control measures to keep it from spreading.<ref>{{Cite journal|last1=Buitrago-Garcia|first1=Diana|last2=Egli-Gany|first2=Dianne|last3=Counotte|first3=Michel J.|last4=Hossmann|first4=Stefanie|last5=Imeri|first5=Hira|last6=Ipekci|first6=Aziz Mert|last7=Salanti|first7=Georgia|last8=Low|first8=Nicola|date=2020-09-22|title=Occurrence and transmission potential of asymptomatic and presymptomatic SARS-CoV-2 infections: A living systematic review and meta-analysis|journal=PLOS Medicine|language=en|volume=17|issue=9|article-number=e1003346|doi=10.1371/journal.pmed.1003346|pmid=32960881|pmc=7508369|issn=1549-1676|doi-access=free}}</ref> | ||
* It is not required that a person undergo treatment. It does not cause later medical problems such as [[Hypertension|high blood pressure]] and [[Hyperlipidemia|hyperlipidaemia]].<ref>{{Cite journal | doi = 10.7861/clinmedicine.1-3-230 | last1 = Tattersall | first1 = R | title = Diseases the doctor (or autoanalyser) says you have got | journal = [[Clinical Medicine (journal)|Clinical Medicine]] |location= London | volume = 1 | issue = 3 | pages = 230–3 | year = 2001 | pmid = 11446622| pmc = 4951914 }}</ref> | * It is not required that a person undergo treatment. It does not cause later medical problems such as [[Hypertension|high blood pressure]] and [[Hyperlipidemia|hyperlipidaemia]].<ref>{{Cite journal | doi = 10.7861/clinmedicine.1-3-230 | last1 = Tattersall | first1 = R | title = Diseases the doctor (or autoanalyser) says you have got | journal = [[Clinical Medicine (journal)|Clinical Medicine]] |location= London | volume = 1 | issue = 3 | pages = 230–3 | year = 2001 | pmid = 11446622| pmc = 4951914 }}</ref> | ||
* Be alert to possible problems: asymptomatic [[hypothyroidism]] makes a person vulnerable to [[Wernicke–Korsakoff syndrome]] or [[Thiamine deficiency|beri-beri]] following [[Intravenous therapy|intravenous]] glucose.<ref>{{Cite journal | * Be alert to possible problems: asymptomatic [[hypothyroidism]] makes a person vulnerable to [[Wernicke–Korsakoff syndrome]] or [[Thiamine deficiency|beri-beri]] following [[Intravenous therapy|intravenous]] glucose.<ref>{{Cite journal | ||
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== Mental health == | == Mental health == | ||
Subclinical or subthreshold conditions are those for which the full diagnostic criteria are not met and have not been met in the past, although symptoms are present. This can mean that symptoms are not severe enough to merit a diagnosis,<ref>{{Cite journal |last=Ji |first=Jianlin |date=October 2012 |title=Distinguishing subclinical (subthreshold) depression from the residual symptoms of major depression |journal=Shanghai Archives of Psychiatry |volume=24 |issue=5 |pages=288–289 |doi=10.3969/j.issn.1002-0829.2012.05.007 |issn=1002-0829 |pmc=4198879 |pmid=25328354}}</ref> or that symptoms are severe but do not meet the criteria of a condition.<ref>{{Cite book | Subclinical or subthreshold conditions are those for which the full diagnostic criteria are not met and have not been met in the past, although symptoms are present. This can mean that symptoms are not severe enough to merit a diagnosis,<ref>{{Cite journal |last=Ji |first=Jianlin |date=October 2012 |title=Distinguishing subclinical (subthreshold) depression from the residual symptoms of major depression |journal=Shanghai Archives of Psychiatry |volume=24 |issue=5 |pages=288–289 |doi=10.3969/j.issn.1002-0829.2012.05.007 |issn=1002-0829 |pmc=4198879 |pmid=25328354}}</ref> or that symptoms are severe but do not meet the criteria of a condition.<ref>{{Cite book |title=Diagnostic and statistical manual of mental disorders: DSM-5. |date=2013 |publisher=American Psychiatric Association |others=American Psychiatric Association, American Psychiatric Association. DSM-5 Task Force |isbn=978-0-89042-554-1 |edition=5th |location=Arlington, VA |oclc=830807378}}</ref> | ||
== List == | == List == | ||
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* [[Chronic myelogenous leukemia]] | * [[Chronic myelogenous leukemia]] | ||
* [[Coeliac disease]] | * [[Coeliac disease]] | ||
* [[Coronavirus]] (common cold germs) | |||
* [[Coronary artery disease]] | * [[Coronary artery disease]] | ||
* [[ | * [[COVID-19]] | ||
* [[Cowpox]] | * [[Cowpox]] | ||
* [[Diabetic retinopathy]] | * [[Diabetic retinopathy]] | ||
| Line 63: | Line 64: | ||
* [[Herpes]] | * [[Herpes]] | ||
* [[Heterophoria]] | * [[Heterophoria]] | ||
* [[Hypertension|Hypertension (high blood pressure)]] | * [[Hypertension|Hypertension (high blood pressure)]] | ||
* [[Histidinemia]] | * [[Histidinemia]] | ||
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{{div col end}} | {{div col end}} | ||
Millions of women reported lack of symptoms during [[pregnancy]] until the point of [[childbirth]] or the beginning of labor | Millions of women reported lack of symptoms during [[pregnancy]] until the point of [[childbirth]] or the beginning of labor and did not know they were pregnant. This phenomenon is known as [[cryptic pregnancy|cryptic pregnancies]].<ref>{{Cite web|url=https://www.news-medical.net/health/What-is-a-Cryptic-Pregnancy.aspx#:~:text=Cryptic%20pregnancy%20is%20the%20phenomenon,cases%20until%20they%20give%20birth.|title = What is a Cryptic Pregnancy?|date = 10 September 2019}}</ref> | ||
== See also == | == See also == | ||
Latest revision as of 21:23, 4 October 2025
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Asymptomatic (or clinically silent) is an adjective categorising the medical conditions (i.e., injuries or diseases) that patients carry but without experiencing their symptoms, despite an explicit diagnosis (e.g., a positive medical test).
Pre-symptomatic is the adjective categorising the time periods during which the medical conditions are asymptomatic.
Subclinical and paucisymptomatic are other adjectives categorising either the asymptomatic infections (i.e., subclinical infections), or the psychosomatic illnesses and mental disorders expressing a subset of symptoms but not the entire set an explicit medical diagnosis requires.
Examples
An example of an asymptomatic disease is cytomegalovirus (CMV) which is a member of the herpes virus family. "It is estimated that 1% of all newborns are infected with CMV, but the majority of infections are asymptomatic." (Knox, 1983; Kumar et al. 1984)[1] In some diseases, the proportion of asymptomatic cases can be important. For example, in multiple sclerosis it is estimated that around 25% of the cases are asymptomatic, with these cases detected postmortem or just by coincidence (as incidental findings) while treating other diseases.[2]
Importance
Knowing that a condition is asymptomatic is important because:
- It may be contagious, and the contribution of asymptomatic and pre-symptomatic infections to the transmission level of a disease helps set the required control measures to keep it from spreading.[3]
- It is not required that a person undergo treatment. It does not cause later medical problems such as high blood pressure and hyperlipidaemia.[4]
- Be alert to possible problems: asymptomatic hypothyroidism makes a person vulnerable to Wernicke–Korsakoff syndrome or beri-beri following intravenous glucose.[5]
- For some conditions, treatment during the asymptomatic phase is vital. If one waits until symptoms develop, it is too late for survival or to prevent damage.
Mental health
Subclinical or subthreshold conditions are those for which the full diagnostic criteria are not met and have not been met in the past, although symptoms are present. This can mean that symptoms are not severe enough to merit a diagnosis,[6] or that symptoms are severe but do not meet the criteria of a condition.[7]
List
These are conditions for which there is a sufficient number of documented individuals that are asymptomatic that it is clinically noted. For a complete list of asymptomatic infections see subclinical infection.
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- Balanitis xerotica obliterans
- Benign lymphoepithelial lesion
- Cardiac shunt
- Carotid artery dissection
- Carotid bruit
- Cavernous hemangioma
- Chloromas (Myeloid sarcoma)
- Cholera
- Chronic myelogenous leukemia
- Coeliac disease
- Coronavirus (common cold germs)
- Coronary artery disease
- COVID-19
- Cowpox
- Diabetic retinopathy
- Essential fructosuria
- Flu or Influenza strains
- Folliculosebaceous cystic hamartoma
- Glioblastoma multiforme (occasionally)
- Glucocorticoid remediable aldosteronism
- Glucose-6-phosphate dehydrogenase deficiency
- Hepatitis
- Hereditary elliptocytosis
- Herpes
- Heterophoria
- Hypertension (high blood pressure)
- Histidinemia
- HIV (AIDS)
- HPV
- Hyperaldosteronism
- hyperlipidaemia
- Hyperprolinemia type I
- Hypothyroidism
- Hypoxia (some cases)
- Idiopathic thrombocytopenic purpura
- Iridodialysis (when small)
- Lesch–Nyhan syndrome (female carriers)
- Levo-Transposition of the great arteries
- Measles
- Meckel's diverticulum
- Microvenular hemangioma
- Mitral valve prolapse
- Monkeypox
- Monoclonal B-cell lymphocytosis
- Myelolipoma
- Nonalcoholic fatty liver disease
- Optic disc pit
- Osteoporosis
- Pertussis (whooping cough)
- Pes cavus
- Poliomyelitis
- Polyorchidism
- Pre-eclampsia
- Prehypertension
- Protrusio acetabuli
- Pulmonary contusion
- Renal tubular acidosis
- Rubella
- Smallpox (extinct since the 1980s)
- Spermatocele
- Sphenoid wing meningioma
- Spider angioma
- Splenic infarction (though not typically)
- Subarachnoid hemorrhage
- Tonsillolith
- Tuberculosis
- Type II diabetes
- Typhus
- Vaginal intraepithelial neoplasia
- Varicella (chickenpox)
- Wilson's disease
Millions of women reported lack of symptoms during pregnancy until the point of childbirth or the beginning of labor and did not know they were pregnant. This phenomenon is known as cryptic pregnancies.[8]
See also
References
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- ↑ Vinson, B. (2012). Language Disorders Across the Lifespan. p. 94. Clifton Park, NY: Delmar
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