One of the disadvantages of tattoo is that skin is the first line of defense of human body, which plays an important role in resisting the damage of external mechanical, physical and chemical stimuli and the invasion of pathogenic microorganisms. Tattoos, on the other hand, destroy this line of defense, making the human body's ability to resist various stimuli decline, especially prone to bacterial infection. Most tattoo artists don't know medicine, and disinfection is not strict or not at all. When the needle tip pierces the skin, bacteria and other pathogenic microorganisms are brought into the body, causing various infectious diseases, such as furuncle, carbuncle, erysipelas and impetigo. If the wound area is large, the bacteria are highly toxic, and even grow and multiply in the blood, they will suffer from septicemia, which is life-threatening.

Disadvantages of tattoos II. The disadvantage of tattoos to individuals is that if they are tattooed on obvious parts, it may be difficult to find a job because some work units refuse to accept people with tattoos.

Disadvantages of tattoos 3. There are many kinds of pigments for tattoos, many of which are chemicals. These chemicals will cause dermatitis and allergies after entering the human body, and even make local itching, pain, burning sensation, numbness and so on. Some will also lead to cell mutation, which is a prelude to cancer. Moreover, it is extremely difficult to remove tattoos. At present, a special drug has not been developed to remove them. The only way is plastic surgery.