Blackout during laser tattoo treatment: what to know

Fainting, also called syncope, can happen when a trigger causes blood pressure and blood flow to the brain to fall briefly. Warning symptoms may include warmth, sweating, nausea, pallor, tunnel vision, ringing in the ears or weakness. Pain, anxiety, prolonged standing, a warm treatment room, dehydration or an empty stomach can contribute. Anaemia, low blood sugar and heart rhythm problems are other possible contributors. A blackout should not automatically be dismissed as a normal part of tattoo treatment, especially if it was sudden or unexplained.

Tell the practitioner immediately if you feel faint, nauseated, clammy, unusually hot or light-headed. Stop the procedure and lie flat with suitable supervision; raising the legs may help if there is no injury and breathing is normal. Do not stand quickly after you recover. Have a responsible adult observe you, follow the clinic's aftercare advice and avoid restarting treatment until the cause and safety plan are clear. A clinician can review hydration, food intake, medicines and any previous fainting episodes.

Call emergency services if the person does not regain consciousness promptly, has trouble breathing, chest pain, a severe headache, seizure-like movements, a serious injury or ongoing confusion. Seek medical assessment after fainting during exercise, with palpitations, without warning, or when there is a known heart condition. Arrange review for repeated episodes or fainting linked with heavy bleeding, marked thirst or other persistent symptoms. Do not drive until you have recovered and received appropriate advice.

Ask whether the episode fits fainting, whether blood pressure, blood tests or heart checks are needed, how to prepare for future procedures, and which symptoms should stop treatment altogether.