When a mole grows back after laser removal, you can either do the laser again or try treatments such as freezing, electro-ionization, surgical excision, or leave it alone. Laser mole removal mostly refers to pigmented nevus, which is a kind of benign skin growth and usually has no effect on the body, but only affects the aesthetics a little. After laser mole removal, some patients will have a recurrence, which is mostly caused by the fact that the laser did not clean the mole thoroughly, and some mole cells remain in the epidermis. After recurrence, laser can be used again to clean up all the moles, and you can also try to do ionization or freezing treatment. If the nevus is large in size, you can try to remove the entire nevus with surgical treatment. The vast majority of moles have no effect on the body, especially those on the face, chest and back, which usually have a very low risk of malignancy and can be left untreated. Laser mole removal should be carried out in a medical institution by a professional doctor to avoid repeated attacks or leaving pigmentation and scarring.