• Allergy to the material, for being metals derived from the nickel and heavy not metals as there can be the titanium or niobio, etc...
• The allergy to the nickel and costume jewelry they can appear in 45 % of the population; for it debit of being a topic to be prepared
• Infections for bacteria, places that are usually friendly with Antibiotics, but there is very frequent the rejection and the need to remove the piercing again.

The route of application and the method contain certain risks of transmission of viral illnesses, Hepatitis B, C, D, and AIDS, although for the time being verifiable cases have not been described.

• To avoid to put themselves piercing the allergic ones to the nickel or costume jewelry.
• To avoid to put itself piercing the persons with moderate or serious acne.
• To verify the basic norms of hygiene and sterility.
• To verify the content of the material.
• To support a suitable hygiene of the area.

• Infections. If the initial inconvenience continues after the healing, it is necessary to consult a dermatologist.
• Allergies. In the shape of contact eczema, the skin catches fire, produces vesicles, exuda and stings, the causer does not disappear up to eliminating.
• There are cases of allergy to the colourings (tattoo) or to the metals and other used materials:
  • The red mercury sulfate is used like red pigment in tattooes and in artistic paintings.
  • Metals Nickel, Chromium (Dicromato potásico) in green tattooes, (Yellow) Cadmium
  • You go out of cobalt in blue tattooes.
  • I oxidize of iron, tones ocres.
  • Care with the colors target and beige!, they take in his composition Oxide of Titanium and Oxide of Zinc.
  • Other organic pigments, azoicos and derived from plants they give allergy in certain persons.

• If the material used by the tatuador is not sterile and of only one I use, there exists danger of contracting infectious illnesses. One emphasizes that also it is possible that there is transmitted the virus of the Hepatitis B and C, in addition to other infectious illnesses, if the secondhand material is not sterilized.
• The tattooes and the piercing are dissuaded to the persons suffering from diabetes, renal insufficiency or congenital cardiac illnesses: a possible allergic reaction would be dangerous.

• Infection.
• Dispersion of pigments (migrations).
• Skill defects.

• 1. To verify the composition of the colourings.
  According to the current legislation, the pigments for Micropigmentation must fulfill the following requisites:
  • In the labeling there must go specified the composition, which company and manufacturer must be met, lot, expiry date.
  • Chemical properties:
    Not to be toxicants.
    Not to provoke annoyance of the textiles.
    Sterile of origin.
    Constituted by inert ingredients (oxide of iron).
    Not to change thickness.
    Particles of size superior to 6 microns, so that the macrophages have more difficulty on having consumed them and remain more time in the treated area.
    Few solubility (major stability).
• 2. To do with them sensibility tests previously with an alergólogo.
  To different metals, salt and organic pigments.
• 3. To verify the hygiene of the material to be used.

In the form previous to record of a client that one wants to put a piercing or a tattoo he must remain registered:

• If it has Diabetes.
• If it has or in his family there is Hemophilia.
• If it has or has had reactions in the skin with soaps, disinfectants, etc...
• If it has allergy costume jewelry or metals.
• If it has had problems of epilepsy or similar.
• If it takes anticoagulant medication.

Also it is necessary to have the personal information of the client, acceptance assent in writing. If there is under-age an assent of the head of the family or tutor.