The most harmless danger of getting a tattoo is the threat of a minor allergic reaction or bacterial infection. Some people have allergic reactions to the ink used for tattooing. Tattoos can lead to all types of skin conditions, including allergic dermatitis, psoriasis, scarring and eczema. If you are prone to allergic reactions or have sensitive skin, it is a good idea to test the ink on your skin prior to going through with the tattoo, or to avoid getting tattooed altogether.
Infected needles and unsanitary conditions in tattoo parlors can lead to minor conditions, but they can also lead to life-threatening illnesses such as Hepatitis B, Hepatitis C, HIV and AIDS. Though the Centers for Disease Control maintain tattooing is not the number-one cause of Hepatitis C, which can cause cirrhosis and cancer, there are more recent studies that dispute this. Because tattoos carry the threat of deadly disease, blood banks ban donors from giving blood if they have gotten a tattoo within the past year.
The chemicals used to make tattoo ink are a major cause for concern. The pigments used to color the skin are the same type used for automobile paint and computer printer ink. Tattoo ink contains toxic metals such as mercury and lead, which, when injected by a needle, can permeate major organs and lymph nodes. Since the Food and Drug Administration does not regulate the tattoo industry, the possible dangers and long-term affects of these chemicals are not known.
A tattoo is technically permanent and although there are laser treatments to remove them, they are costly and painful. If you decide you do not like your tattoo or get tired of it over time, it can be difficult to remove or cover up. Having a visible tattoo can affect your ability to get a job or others may look at you differently because there can be a stigma that comes with having a tattoo.