Which two conditions can be treated by lasers in dermatology?

The correct pairing includes acne scars and melasma because both conditions involve the skin's appearance and can be effectively treated with laser technology. Acne scars are typically caused by the inflammatory process of acne lesions, leading to irregular texture and discoloration. Lasers such as fractional resurfacing can stimulate collagen production and promote the healing of the skin, improving texture and reducing the visibility of scars.

Melasma is a common skin condition characterized by brown or gray-brown patches, often influenced by hormonal changes and sun exposure. Certain types of lasers can target the pigment in melasma, helping to lighten these patches and achieve a more uniform skin tone.

These treatments are commonly performed in dermatology, as they offer minimally invasive options with the potential for significant aesthetic improvements. In contrast, while the other options may mention conditions that can also be treated by other medical or cosmetic interventions, they do not encompass the specific pairing of skin concerns that laser technology is frequently utilized for, as seen with both acne scars and melasma.