Injury refers to the damage caused to the body due to external forces. An injury can manifest in the form of cut, bruise, bleeding or swellings and is caused due to a fall, hit, accident or trauma. Injury can be both external as well as internal. Swelling is a normal response of the body to an injurious agent. In fact, swelling is seen as a result of the defence mechanism of the body due to the initiation of an inflammatory response.
While swelling may vary in severity, location and characteristics, it generally describes an area of inflammation with an increased blood flow and accumulation of fluids. This is what is responsible for redness, heat and enlargement of the injured area in size, which are the typical signs of inflammation.
Swelling can be acute or chronic. It is acute when it is manifested immediately within 24 hours and becomes chronic when the symptoms develop gradually after an injury.
Severe cases of both these types of swelling require immediate medical attention but mild cases of swelling can be easily managed at home, provided there is no underlying pathology.
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