There are more reasons for a circle of blackness around a mole, such as anti-blackness, hyperpigmentation, incomplete mole spotting, mole recurrence and so on. 1. Normal phenomenon: after laser mole spotting, the local skin may be stimulated by light and heat, most of the symptoms of anti-blackness may appear about two weeks after the operation, most of the symptoms will disappear slowly with the gradual repair of the skin layer, and the disappearance time usually takes about two months, and does not need special intervention and treatment. Usually, you can apply vitamin E ointment to whiten the skin and alleviate the symptoms. 2. Hyperpigmentation: Post-operative care is not done properly, such as scabs accidentally fall off too early, failure to strictly sunscreen, and so on, and the phenomenon of hyperpigmentation appeared after healing. In this case, hydroquinone cream can be used externally to lighten the pigmentation. 3. Incomplete mole spotting: Incomplete mole spotting may also lead to the phenomenon of blackness around the trauma after mole spotting, and it is usually treated again after 1-3 months. 4. Mole recurrence: Mole recurrence after mole spotting may also cause the phenomenon of blackness around the wound after mole spotting, usually wait for 1-3 months and then treat again. It is recommended to go to the regular medical institution for consultation, clarify the cause of the disease and take standardized treatment under the guidance of the doctor.