A chronic condition (also known as chronic disease or chronic illness) is a health condition or disease that is persistent or otherwise long-lasting in its effects or a disease that comes with time. The term chronic is often applied when the course of the disease lasts for more than three months. Common chronic diseases include diabetes, functional gastrointestinal disorder, eczema, arthritis, asthma, chronic obstructive pulmonary disease, autoimmune diseases, genetic disorders and some viral diseases such as hepatitis C and acquired immunodeficiency syndrome. An illness which is lifelong because it ends in death is a terminal illness. It is possible and not unexpected for an illness to change in definition from terminal to chronic. Diabetes and HIV for example were once terminal yet are now considered chronic due to the availability of insulin for diabetics and daily drug treatment for individuals with HIV which allow these individuals to live while managing symptoms.[1]
In medicine, chronic conditions are distinguished from those that are acute. An acute condition typically affects one portion of the body and responds to treatment. A chronic condition, on the other hand, usually affects multiple areas of the body, is not fully responsive to treatment, and persists for an extended period of time.[2]
Chronic conditions may have periods of remission or relapse where the disease temporarily goes away, or subsequently reappears. Periods of remission and relapse are commonly discussed when referring to substance abuse disorders which some consider to fall under the category of chronic condition.[3]
Chronic conditions are often associated with non-communicable diseases which are distinguished by their non-infectious causes. Some chronic conditions though, are caused by transmissible infections such as HIV/AIDS.[citation needed]
63% of all deaths worldwide are from chronic conditions.[4] Chronic diseases constitute a major cause of mortality, and the World Health Organization (WHO) attributes 38 million deaths a year to non-communicable diseases.[5] In the United States approximately 40% of adults have at least two chronic conditions.[6][7] Living with two or more chronic conditions is referred to as multimorbidity.[8]
^Bernell S, Howard SW (2016-08-02). "Use Your Words Carefully: What Is a Chronic Disease?". Frontiers in Public Health. 4: 159. doi:10.3389/fpubh.2016.00159. PMC 4969287. PMID 27532034.
^Jaeger J, Borod JC, Peselow E (September 1996). "Facial expression of positive and negative emotions in patients with unipolar depression". Journal of Affective Disorders. 11 (1): 43–50. doi:10.1097/00006416-199609000-00014. PMC 2944927. PMID 2944927.
^Dennis M, Scott CK (December 2007). "Managing addiction as a chronic condition". Addiction Science & Clinical Practice. 4 (1): 45–55. doi:10.1151/ascp074145. PMC 2797101. PMID 18292710.
^"WHO | Noncommunicable diseases country profiles 2011". WHO. Archived from the original on March 28, 2013. Retrieved 2020-09-11.
^"Noncommunicable diseases. Fact sheet". World Health Organization. January 2015. Retrieved April 5, 2016.
^Gerteis J, Izrael D, Deitz D, et al.Multiple Chronic Conditions Chart-book. Rockville, MD: Agency for Healthcare Research and Quality;2014
^"Chronic Diseases in America". Center for Disease Control. 1999. Retrieved 10 August 2020.
^"Multiple long-term conditions (multimorbidity): making sense of the evidence". NIHR Evidence. 2021-03-30. doi:10.3310/collection_45881. S2CID 243406561.
A chroniccondition (also known as chronic disease or chronic illness) is a health condition or disease that is persistent or otherwise long-lasting in...
Look up chronic in Wiktionary, the free dictionary. Chronic may refer to: Chroniccondition, a condition or disease that is persistent or otherwise long-lasting...
Chronic inflammatory demyelinating polyneuropathy (CIDP) is an acquired autoimmune disease of the peripheral nervous system characterized by progressive...
Chronic venous insufficiency (CVI) is a medical condition in which blood pools in the veins, straining the walls of the vein. The most common cause of...
loss of eyelashes or broken eyelashes. The condition can sometimes lead to a chalazion or a stye. Chronic bacterial blepharitis may also lead to ectropion...
with chronic bronchitis, and there were 518 reported deaths. Per 100,000 of population the death rate of chronic bronchitis was 0.2. The condition of bronchitis...
Acute kidney injuries can be present on top of chronic kidney disease, a condition called acute-on-chronic kidney failure (AoCRF). The acute part of AoCRF...
rest. Common activities that trigger chronic compartment syndrome include running and biking. Generally, this condition does not result in permanent damage...
Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease linked to repeated trauma to the head. The encephalopathy symptoms can include behavioral...
acute or chroniccondition. In acute atelectasis, the lung has recently collapsed and is primarily notable only for airlessness. In chronic atelectasis...
the body's own cells, causing inflammation and other symptoms. The condition is chronic, meaning it persists for more than six weeks, and can last for many...
There are many definitions for what counts as a chroniccondition. However, children with chronic illnesses will typically experience at least one of...
cholecystectomy, and can be transient, persistent or lifelong. The chroniccondition is diagnosed in approximately 10% of postcholecystectomy cases. The...
the term sometimes also connotes a fulminant nature Chroniccondition or chronic disease A chronic disease is one that persists over time, often for at...
reflect true longevity. An illness which is lifelong but not fatal is a chroniccondition. Terminal patients have options for disease management after diagnosis...
Chronic wasting disease (CWD), sometimes called zombie deer disease, is a transmissible spongiform encephalopathy (TSE) affecting deer. TSEs are a family...
Chronic myelogenous leukemia (CML), also known as chronic myeloid leukemia, is a cancer of the white blood cells. It is a form of leukemia characterized...
and for some may be more disabling. As dysthymia is a chronic disorder, those with the condition may experience symptoms for many years before it is diagnosed...
experience sleepiness or feel tired during the day. It is often a chroniccondition. Sleep apnea may be categorized as obstructive sleep apnea (OSA),...
Mental disability may refer to: Developmental disability, a chroniccondition due to mental or physical impairments arising before adulthood Disabilities...
Chronic Lyme disease (CLD) is the name used by some people with non-specific symptoms, such as fatigue, muscle pain, and cognitive dysfunction to refer...
Chronic sclerosing sialadenitis is a chronic (long-lasting) inflammatory condition affecting the salivary gland. Relatively rare in occurrence, this condition...