Question: what are the different types of skin pigmentation?
Answer: Freckles. Freckles are the most common type of pigmentation. ... 
Solar Lentigines. Solar Lentigines are the pigmentation types also known as liver spots, sun spots, brown spots or age spots. ... 
Melasma. Melasma (or chloasma) is more common in women. ... 
Post-Inflammatory Hyperpigmentation (PIH)