Warning: This article contains graphic images
At first glance the woman in the video above has perfectly clear skin.
But expert dermatologist Dr Sandra Lee - aka Dr Pimple Popper - knows something gruesome must be lurking beneath its surface.
With the camera rolling, Dr Lee takes up her tools and begins to examine a small bump just above her patient's lip.
It isn't long before she extracts what has to be the largest blackhead we have ever seen.
As Dr Lee says: "It looks like a little baby river rock."
Video Of Man Having Giant Cyst Removed From Face Will Make You Gag (GRAPHIC)