Various types of lasers can be used for treating stretch marks and scars, including fractional lasers, pulsed dye lasers, and ablative lasers. The specific type of laser used depends on factors such as the severity of the condition and the patient's skin type.

Laser therapy for stretch marks and scars is generally well-tolerated, with most patients experiencing only minor discomfort during treatment. Some may describe the sensation as feeling like a mild snapping or stinging sensation. Topical numbing creams or cooling devices may be used to minimize discomfort during the procedure.

The number of laser therapy sessions needed depends on factors such as the severity of the stretch marks or scars, the type of laser used, and the patient's individual response to treatment. Typically, multiple sessions spaced several weeks apart are required to achieve optimal results.