Edit What are the causes of hyperpigmentation bullet points

<ol> <li><strong><a href="/conditions/melasma-chloasma-pigmentation/" target="_blank" rel="noopener">Melasma</a> :</strong> Seen as brown patches on the face, it is more commonly seen in females. It occurs due to hormonal changes in the body. The pigmentation increases on sun sun exposure.</li> <li><strong>Peri-orbital melanosis :</strong> Also known as 'dark circles' may be heriditary, due to stress or eye strain</li> <li><strong>Freckles and Lentigenes :</strong> These are tiny black spots on the face and are genetic in origin.</li> <li><strong>Photomelanosis :</strong> This is increased pigmentation due to sun exposure. The pigmentation occurs on exposed skin, commonly on the face, neck and the back. The pigmentation may be patchy or as diffused darkening of the exposed skin.</li> <li><strong>Sun burn (tan) :</strong> A condition commonly encountered in fair skinned people due to excessive sun exposure.</li> <li><strong>Post inflammatory hyperpigmentation :</strong> It may be seen in the following cases:</li> </ol> <ul> <li>Seen after healing has occured, like in acne, eczemas, contact dermatitis etc.</li> <li>Drug induced pigmentation.</li> <li>Pigmentation due to cosmetics especially those containing fragrance.</li> <li>Macular Amyloidosis</li> <li>Systemic disease such as Addison disease, liver disease, pregnancy, pituitary tumours.</li> </ul>

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