Hyperpigmentation is darkening of skin due to increased production of melanin in those areas. It can occur in any part of the body, either localised to small patches or generalised to involve larger areas It can be caused by a variety of factors - external or internal. Causative factors are - unprotected sun exposure and hormonal changes such as thyroid disorders, polycystic ovarian syndrome, pregnancy, hereditary.

Certain typical presentations commonly seen are Melasma which presents as mask like pigmentation on the face, slate grey to bluish grey pigmentation seen in Lichen Planus Pigmentosus, pigmentation in sun exposed areas - Photomelanosis.

Treatment for hyperpigmentation involves identifying the cause and eliminating it, Additionally oral and topical applications, several in-clinic treatments; like chemical peels, pigment modifying lasers Q switch NdYAG LASer, platelet rich plasma therapy, intense pulse light, mesotherapy these reduce the pigmentation and hasten resolution of the condition.