Congestion may refer to:
Medicine
*Excessive fluid in tissues, vessels, or both, including:
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Edema
Edema (American English), also spelled oedema (British English), and also known as fluid retention, swelling, dropsy and hydropsy, is the build-up of fluid in the body's tissue (biology), tissue. Most commonly, the legs or arms are affected. S ...
, abnormal accumulation of fluid in the
interstitium
In anatomy, the interstitium is a contiguous fluid-filled space existing between a structural barrier, such as a cell membrane or the skin, and internal structures, such as organs, including muscles and the circulatory system. The fluid in this s ...
, manifesting as swelling
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Peripheral edema
Peripheral edema is edema (accumulation of fluid causing swelling) in tissues perfused by the peripheral vascular system, usually in the lower limbs. In the most dependent parts of the body (those hanging distally), it may be called dependent ede ...
, edema in peripheral body parts such as limbs and feet
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Pulmonary edema
Pulmonary edema (British English: oedema), also known as pulmonary congestion, is excessive fluid accumulation in the tissue or air spaces (usually alveoli) of the lungs. This leads to impaired gas exchange, most often leading to shortness ...
, edema in the lungs that impairs breathing
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Congestive heart failure
Heart failure (HF), also known as congestive heart failure (CHF), is a syndrome caused by an impairment in the heart's ability to fill with and pump blood.
Although symptoms vary based on which side of the heart is affected, HF typically pr ...
, heart failure resulting in congestion in one or more organs
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Nasal congestion
Nasal congestion is the partial or complete blockage of nasal passages, leading to impaired nasal breathing, usually due to membranes lining the nose becoming swollen from inflammation of blood vessels.
Background
In about 85% of cases, nasal ...
, the blockage of nasal passages due to swollen membranes
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Prostatic congestion
Prostatic congestion is a medical condition of the prostate gland that happens when the prostate becomes swollen by excess fluid and can be caused by prostatitis. The condition often results in a person with prostatic congestion feeling the urge to ...
, a medical condition that happens when the prostate becomes swollen by excess fluid
Other uses
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Network congestion
Network congestion in data networking and queueing theory is the reduced quality of service that occurs when a network node or link is carrying more data than it can handle. Typical effects include queueing delay, packet loss or the blocking of ...
, reduced quality of service when a network is carrying more data than it can handle
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Traffic congestion
Traffic congestion is a condition in transport that is characterized by slower speeds, longer trip times, and increased vehicular queueing. Traffic congestion on urban road networks has increased substantially since the 1950s, resulting in m ...
, vehicles clogging streets and highways
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Congestion pricing
Congestion pricing or congestion charges is a system of surcharging users of public goods that are subject to congestion through excess demand, such as through higher peak charges for use of bus services, electricity, metros, railways, tel ...
, a system of surcharging users of public goods that are subject to congestion through excess demand
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