Hi thanks for your question.
This mole is malignant (cancerious)or not can only be determined by histopathology,once it is removed.
The procedure for its removal depends upon its size,if mole is of small siz it can be removed under local anaesthesia..
However if mole is of large size it has to be removed under general anaesthesia
You will have mild pain after its removal which can be easily taken care by pain killer.
Hope this answers your question.