Lip tattooing or lip blush procedures can improve lip colour appearance, but they do carry some risks, especially on naturally darker or sensitive lips. Common side effects include swelling, pain, dryness, allergic reaction to pigments, uneven colour healing, infection, cold sore flare-ups, and sometimes patchy or unexpected colour changes over time. On darker lips, the final shade may also look different from the intended colour because the natural pigment underneath affects healing results. In some people, the lips can become darker afterwards due to irritation or post-inflammatory pigmentation, particularly if the procedure is done aggressively or by an inexperienced artist. Choosing a trained professional who follows proper hygiene and patch testing is very important. It is also important to understand that results are semi-permanent and may need touch-ups later. If you have a history of allergies, sensitive skin, keloids, or recurrent lip infections, it is better to discuss it with a dermatologist first. Taking good aftercare seriously is essential because poor healing is one of the main reasons for long-term problems after cosmetic lip tattoo procedures.