Yellow skin can mean many things. Yes many people will just think "oh someone peed on your skin..." well no. First it could mean ringworm. It glows a yellowish, greenish color under a black light. Another thing is ask your doctor! Or your turning into a Simpson ( Sorry couldn't resist putting that)
Dermoid is the medical term meaning skin-like
xanthochroism
Pyoderma is the medical term meaning any purulent skin condition.
Hyperpigmentation is the medical term meaning excessively darkened skin.
Acrochordon is the medical term meaning skin tag. Skin tags can occur in areas of high friction.
Dermatomycosis is the medical term meaning fungal disease of the skin.
Sub- is the prefix of the term subdermal, meaning below the skin.
The medical term meaning Tb skin test is Mantoux. It's a term that refers to a skin test to check for tuburculosis.
Hyperpigmentation is the medical term meaning excessively darkened skin.
"Cutaneous" is the medical term that means pertaining to the surface of the skin.
"Infection".
Sebum is the medical term meaning protective oil of the skin.