List at least five contraindications or cautions to laser hair removal.

• A. Pregnancy or lactation; active infection or open wounds at treatment site; isotretinoin use within 6–12 months; photosensitizing medications or recent tanning; history of keloids or hypertrophic scarring; uncontrolled active illness.
• B. Pregnancy; mild acne; regular exercise; age under 18.
• C. Active infection or open wounds; isotretinoin use within 2 years; photosensitizing medications; recent tanning.
• D. No contraindications exist.

Answer: (A)

Contraindications and cautions are conditions that raise the risk of adverse effects or reduce the safety and effectiveness of laser hair removal. The strongest list includes pregnancy or lactation, active infection or open wounds at the treatment site, isotretinoin use within 6–12 months, photosensitizing medications or recent tanning, a history of keloids or hypertrophic scarring, and any uncontrolled active illness. Each item is about skin response and healing: pregnancy is avoided because safety data are limited and hormonal changes can affect outcomes; active infection or openings can spread or worsen skin damage; isotretinoin can impair healing and increase scarring or pigment changes; photosensitizing meds or recent tanning heighten the risk of burns or pigmentation shifts; a tendency to form thick scars raises the chance of abnormal scarring after treatment; and an overall illness can compromise healing.

The other options miss several of these important cautions or include items that aren’t considered contraindications in standard practice (like mild acne, regular exercise, or being under a certain age). Also, one option understates the isotretinoin window. That’s why the first choice best reflects the real precautions for laser hair removal.