The Honest Truth about Tattoo Ink
This article is not meant to scare you. It is only here to educate so that you, as a client, are walking into your tattoo experience with fully informed consent.
While generally considered safe when performed by professionals, tattoo ink carries several risks ranging from immediate infections to long-term systemic concerns. The U.S. Food and Drug Administration (FDA) notes that even unopened, sealed ink can harbor bacteria and other microorganisms.
Immediate Health Risks
Infections: Contaminated ink or unsterile equipment can lead to bacterial infections (like Staphylococcus or Pseudomonas), which may cause rashes, fever, or in severe cases, life-threatening conditions like sepsis.
Allergic Reactions: You may develop an itchy rash or hives at the tattoo site. Red ink is the most common culprit for these reactions, which can occur immediately or even years later. In our experience, when a client’s skin has rejected red ink it will often just not set in the skin and will heal very faded or be completely gone. However, this is very rare. And in our 20 years, I have only seen 2 people that this happened to.
Bloodborne Diseases: If equipment is contaminated with infected blood, there is a risk of contracting Hepatitis B, Hepatitis C, or HIV.
Long-Term & Systemic Concerns
Ink Migration: Research shows that 60–90% of injected pigment might not stay in the skin; instead, it travels through the lymphatic system and accumulates in lymph nodes, where it can stay for decades. Ink can also spread in the skin, making lines look fuzzy-edged or much larger than they were when originally tattooed. This can happen for many various reasons including, the kind of ink being used, the artist’s application of the ink, and also just the natural process of the body’s skin growing. Skin cells bloom like a flower and hence ink molecules can be naturally pushed away from their original area. UV rays are also detrimental to tattoo ink by breaking down ink, causing fading, blurring (Protect your tattoo—Use sunblock!).
Cancer Risks: Recent studies have suggested a potential link between tattoos and an increased risk of lymphoma (approximately 21%) and certain skin cancers. However, these studies show correlation, not direct causation, meaning, there is no direct evidence linking tattooed skin as a cause of skin cancer.
Toxic Ingredients: Some inks contain industrial-grade chemicals like heavy metals (lead, mercury, cadmium), azo dyes (which can break down into carcinogens), and polycyclic aromatic hydrocarbons (PAHs). Find an artist that uses safe inks. Reputable professional tattoo inks have Safety Data Sheets (SDS), formerly known as Material Safety Data Sheets (MSDS). These documents are required to provide information on chemical composition, safety handling, hazards, and emergency measures to ensure compliance with occupational safety regulations.
Immune System Impact: Constant exposure to foreign ink particles can lead to chronic inflammation and may even weaken the body's response to certain vaccines. "Tattoo flu" is a temporary, non-infectious immune response to the physical trauma of getting a tattoo, characterized by fatigue, fever, chills, and muscle aches. It often occurs after long sessions as the body repairs skin damage and reacts to the foreign ink. Symptoms typically last 1–2 days and are managed with rest, hydration, and proper nutrition.
MRI Complications: In rare cases, tattoos—especially older ones or those with metallic pigments—can cause swelling or burning sensations during an MRI scan. While the heavy metal content in tattoos is typically small, cumulative exposure can add up over time. Choosing an experienced tattoo artist who uses high-quality, non-toxic inks can help reduce risks.
Other Potential Issues
Granulomas & Keloids: The body may form small knots (granulomas) around ink it perceives as foreign, or you may develop raised scar tissue (keloids) from the skin trauma.
Obscuring Skin Cancer: Tattoos can physically hide changes in moles or skin discoloration, potentially delaying the diagnosis of melanoma.
Getting a Safe Tattoo
This article is not meant to scare you. It is only here to educate so that you as a client are walking into your tattoo experience with fully informed consent. For more information please read How to Vet your Tattoo Artist.
House of Ink Tattoo Studio invites you to reach out anytime to schedule a consult or make an appointment for your tattoo ritual today:
