What occurs due to increased capillary permeability at the site of inflammation?

Increased capillary permeability at the site of inflammation allows fluids, proteins, and leukocytes to escape from the blood vessels into the surrounding tissue. This process leads to the accumulation of fluid in the interstitial spaces, which results in swelling or edema. As the volume of fluid increases, it can create pressure within the tissue, which contributes to the sensation of pain that often accompanies inflammation. This response is part of the body's immune reaction aimed at facilitating the delivery of immune cells to the affected area, but it also results in physical symptoms such as pain and discomfort because of the increased pressure on nerve endings. This response is an essential component of the inflammatory process, as it helps isolate and eliminate harmful agents while promoting healing.