Hyperpigmentation occurs when the skin produces more melanin, the pigment that gives skin its color. This can make spots or patches of skin appear darker than surrounding areas.

Hyperpigmentation is a common skin condition.
It affects people of all skin types.
Some forms of hyperpigmentation, including melasma and sun spots, are more likely to affect areas of skin that face sun exposure, including the face, arms, and legs.
Other types of hyperpigmentation form after an injury or skin inflammation, such as cuts, burns, acne, or lupus. These can occur anywhere on the body.
Having extra pigment in some areas of skin is usually harmless but can sometimes indicate another medical condition.
TREATMENTS

Lightening creams
Lightening creams are available in stronger prescription forms and usually applied once or twice a day to help lighten the skin over time. Topical treatments for lightening also come in gel form.

Chemical peel
A chemical peel uses acids at stronger concentrations to treat the desired area of skin. They reduce the appearance of hyperpigmentation by removing the epidermis. Deeper versions may also penetrate the middle layer of your skin (dermis) to produce more dramatic results.

Lasers
Laser Pigmentation Removal works to safely and effectively reduce the appearance of freckles, pigmentation, and post-trauma pigmentation including acne scars and age spots. The laser targets only the pigmented lesion in the skin which absorbs the light, without damaging the surrounding skin. The laser heats up and shatters the pigment. The pigment is then drawn to the surface without harming the surrounding tissue.

Intense Pulse Light (IPL)
IPL is used for overall pigmentation issues, but flat spots especially respond to this treatment. It may also help reduce the appearance of wrinkles, spider veins, and enlarged pores.