Female/39. Mole removed (initial biopsy) from my right thigh 3+ months ago. Done in a public hospital by a Clinical Nurse Specialist. Very small, flat dysplastic nevus was removed via elliptical excision. 72 hours after surgery I see the stitched wound is in a deep depression, 5mm deep. As though the mole was removed not just with the skin but the fat from underneath too! 3 months+ it hasn't improved despite massage/silicone gel Could this resolve itself or is it going to need surgery?