Final answer:
Monitoring for redness, swelling, and pain after treating a wound is important because they can signal an infection, which requires prompt attention to prevent complications.
Step-by-step explanation:
It is crucial to monitor for increased redness, swelling, and pain after a cut or abrasion has been cleaned and bandaged because these signs can indicate that an infection is developing. When the body's immune system responds to bacteria or other foreign pathogens entering the wound, inflammation occurs, causing these symptoms. Prompt detection and treatment of an infection are essential to prevent complications and promote proper healing.