First, Mohs is not a type of cancer. It is a procedure that removes cancer. So, what I assume you are asking is how long a BCC that you had on your leg will take to heal after a Mohs surgical procedure to that area? The truth is that it will depend on how big the site was and the type of closure used for it. It can take several weeks because the body (especially extremities) take longer to fully heal than the face or neck. If you have questions at all about how your site is healing or looking, consult with your surgeon about it. "This answer has been solicited without seeing this patient and cannot be held as true medical advice, but only opinion. Seek in-person treatment with a trained medical professional for appropriate care."