Moles on the skin, medically known as pigmented moles, are benign neoplasms composed of mole cells that can be removed by surgical excision and laser treatment. 1. Surgical excision: By removing a mole through surgical excision, the surgeon can better control the scope, depth and width of the operation, so the recurrence of the mole after treatment is less. 2. Laser treatment: Moles are removed with the help of the photothermal effect of laser, but for deep moles, the laser may not remove them completely, thus they are prone to recurrence. It is recommended that patients with moles should go to regular hospitals for treatment under the operation of professional doctors to prevent adverse reactions or even cancerous changes.