Moles, everyone has them. The vast majority of moles are benign and have no effect on our health. However, more and more beauty-loving women are asking to remove moles on their faces for the sake of beauty. With the popularity of laser technology, laser mole removal has spread all over the streets. The current laser used for mole removal is mainly CO2 laser. CO2 laser can produce high heat and steam, which causes water molecules to go into a vaporized state. The absorption of energy leads to cell bursting and tissue destruction. There are several issues that need to be understood before using the CO2 laser to remove moles. First, generally speaking, our moles are located at the junction of the true epidermis and within the dermis. To completely remove the mole cells, the treatment depth needs to reach at least the dermis, but once the damage reaches the dermal tissue, scar growth may occur during the tissue repair process. Even if scar growth does not occur, due to the deeper damage, the tissue repair may not be able to return to the original state and a depressed scar may be formed locally. Therefore, scarring should be considered first before surgery. Secondly, the range of mole cells under the skin may be larger than the range visible to our naked eyes, and the laser process needs to expand the treatment slightly along the edge of the mole, which means the treatment range will be larger than the area of the mole. However, most of the operators of laser mole removal often take shallow treatment along the edge of the mole in order to reduce the postoperative scars. It is recommended that women should be cautious before removing moles, choose a regular medical institution, fully communicate with the doctor before surgery, and understand the risks before deciding whether to remove moles.