birthmark (n.)
- blackhead
- blaze
- bleb
- blemish
- blister
- blotch
- brand
- bulla
- character
- check
- cicatrix
- comedo
- crack
- crater
- craze
- cut
- dapple
- defacement
- defect
- deformation
- deformity
- discoloration
- disfiguration
- disfigurement
- distortion
- dot
- earmark
- engraving
- fault
- feature
- flaw
- fleck
- flick
- freckle
- gash
- graving
- hack
- hemangioma
- hickey
- jot
- keloid
- kink
- lentigo
- macula
- mark
- marking
- milium
- mole
- mottle
- nevus
- nick
- notch
- patch
- pimple
- pit
- pock
- pockmark
- point
- prick
- puncture
- pustule
- rift
- scab
- scar
- score
- scotch
- scratch
- scratching
- speck
- speckle
- splash
- split
- splotch
- spot
- stain
- stigma
- sty
- tattoo
- tick
- tittle
- track
- trait
- travail
- twist
- verruca
- vesicle
- wale
- warp
- wart
- watermark
- weal
- welt
- wen
- whitehead
