Cause: Overproduction of melanin.
Common Triggers: Sun exposure, hormonal changes, inflammation.
Appearance: Darkened patches on the skin.
Cause: Reduced melanin production.
Common Triggers: Skin damage, medical conditions, genetic factors.
Appearance: Lightening or loss of pigmentation in areas of the skin.
Cause: Hormonal changes.
Common Triggers: Pregnancy, birth control, sun exposure.
Appearance: Dark patches, often on the face.