To determine whether the mole spotting is clean or not mainly depends on the skin condition of the patient 3~4 months after the mole spotting, if there is no black spot at the original spot after the mole spotting, then it means that the mole spotting has been clean. In the short term after mole spotting, there may be localized darkening of skin color, which is the reaction of pigmentation left after healing of skin damage, and it takes about 3~4 months for the pigmentation to fade away. Patients need to observe their skin condition at this time, if there is no reappearance of black dots or black spots on the face at this time, it means that the patient’s mole has been cleaned up, and it is generally not easy to recur, if there is hyperpigmentation or black spots, then it means that the mole has not been cleaned up completely, and it is necessary to carry out the mole spotting for the second time. If patients need to spot moles, it is recommended to choose regular organizations to carry out, spotting moles there is a certain risk of recurrence, patients should pay attention to observation after spotting moles, if there is a recurrence to the hospital to do a second spotting moles or to take other ways of treatment.