表皮
acne
bacteria
blood
care
cell
cross
dermatology
dermis
disease
drawing
follicle
gland
hair
health
healthy
human
illustration
infection
isolated
layer
medical
medicine
nerve
papilla
people
pimple
pore
problem
root
scheme
science
sebaceous
sebum
section
skin
skincare
stratum
structure
subcutaneous
surface
symbol
tissue
treatment
vein
vessel
whelk
white