This is a typical patient with a series of scars, some from a hair transplant (the large smiley scar). This man elected to cut his hair very short and get pigmentation into the scar. Although an additional session would be a good idea to camouflage the scar better, he stopped at what you see below (on the right). Now if he grows his hair out, the scar should be close to invisible. The red ‘blotch’ you see on the back of his head has been with him most of his life.
The photo on the left is before SMP; The photo on the right is after SMP. Click to enlarge: