Melanin, a pigment present in the skin, is responsible for providing color to the skin and is the leading cause of pigmentation. It is produced by cells known as melanocytes. The secretion of melanin can change depending on several circumstances and causes. The overproduction of melanin is the primary cause of hyperpigmentation. Some medications might cause pigmentation, including some chemotherapy drugs. Even pregnancy can lead to an increase in the production of melanin in females. The skin on the hands, neck, and face can become pigmented due to Addison's disease, a rare endocrine condition. Hyperpigmentation may even result from too much sun exposure and damaging UV radiation. Consult the skin experts at Skinlogics, The Best Skin Clinic in Noida, to learn more about the causes of pigmentation.