What safety principle should guide tissue handling during laser hair removal?

• A. Avoid contacting any skin lesion
• B. Follow sterile technique; treat only healthy skin; avoid infected skin
• C. Disregard markers
• D. Treat through tattoos

Answer: (B)

Maintaining asepsis and protecting tissue integrity guides safe laser hair removal. Using sterile technique and keeping the treatment to healthy, intact skin helps prevent infection and cross-contamination, and also ensures the laser interacts with tissue in a predictable way. Treating infected or compromised skin raises the risk of spreading infection, prolonging healing, and causing unpredictable reactions. Tattoos pose a special risk because tattoo pigment can heat up or change color when exposed to laser energy, leading to burns or pigment alteration, so it's best not to treat through tattooed areas. Marking boundaries should be done with appropriate sterile methods when needed, rather than ignoring prep steps. In short, prioritize a sterile field, treat only healthy skin, and avoid infected or compromised areas for the safest outcome.