Which of the following is a common reason for interruption or cancellation of a laser hair removal session?

• A. Active sunburn or tanning
• B. Device calibration issues
• C. Pregnancy
• D. Patient request

Answer: (A)

The main idea here is safety related to how laser energy interacts with skin. When the skin is tanned or sunburned, there is more melanin in the epidermis to absorb energy. That extra melanin can soak up more laser energy than normal, increasing the risk of burns, blistering, or pigment changes and can also compromise treatment results. For this reason, active sun exposure or a current tan is a common and practical reason to interrupt or cancel a session, until the skin returns to baseline.

Technical issues with the device are handled by the clinic's maintenance staff and aren’t about the patient’s skin condition, so they’re not the typical reason for cancellation in the context of patient safety. Pregnancy is treated as a precaution in many clinics, but it’s not as universally and routinely cited as the reason to pause a session as a tan is. Patient requests to cancel can happen, but they’re not the safety-driven reason that makes cancellations most common.