Congestion may refer to:
Medicine
- Excessive fluid in tissues, vessels, or both, including:
- Edema, abnormal accumulation of fluid in the interstitium, manifesting as swelling
- Peripheral edema, edema in peripheral body parts such as limbs and feet
- Pulmonary edema, edema in the lungs that impairs breathing
- Congestive heart failure, heart failure resulting in congestion in one or more organs
- Nasal congestion, the blockage of nasal passages due to swollen membranes
- Prostatic congestion, a medical condition that happens when the prostate becomes swollen by excess fluid
- Swelling (medical), enlargement of a body part because of fluid retention in tissues and vessels
- Water retention (medicine), also known as fluid retention, in various tissues and vessels
- Edema, abnormal accumulation of fluid in the interstitium, manifesting as swelling
Other uses
- Network congestion, reduced quality of service when a network is carrying more data than it can handle
- Traffic congestion, vehicles clogging streets and highways
- Congestion pricing, a system of surcharging users of public goods that are subject to congestion through excess demand
- Congestion (film), a 1918 silent film