What are the signs of infection in a tattoo?

The signs of infection in a tattoo typically include increasing redness, pus, and warmth. When a tattoo becomes infected, the body's immune response leads to inflammation, which often appears as a red area surrounding the tattoo. This redness usually expands and becomes more pronounced as the infection worsens. The presence of pus is another significant indicator, as it suggests that the body is fighting off bacteria, resulting in the formation of pus from dead white blood cells, bacteria, and tissue debris. Additionally, warmth in the infected area can indicate increased blood flow due to inflammation, which is a natural response to infection.

In contrast, while faded colors and swelling may occur as a tattoo heals, they are not specific indicators of infection. Excessive dryness and flaking can happen during the healing process, but this is more indicative of normal healing rather than an infection. Itching and scabbing can also be common as part of the healing process and do not necessarily signal an infection unless accompanied by other symptoms like worsening redness or pus. Thus, increasing redness, pus, and warmth clearly delineate an infection and warrant prompt attention.