Melasma: a Clinico-epidemiological Study
نویسنده
چکیده
Melasma is an acquired increased pigmentation of the skin, characterized by gray-brown symmetrical patches, mostly in the sun-exposed areas of the skin. The pathogenesis is unknown, but genetic or hormonal influences with UV radiation are important. Our present research aims to study the clinicoepidemiological pattern and the precipitating or provocation factors in melasma. A total of 36 patients were enrolled for the study over a period of three months. The mean age of patients with melasma was 33.77 years, ranging from 21 to 44 years. Females comprised the majority of cases seen in 29 out of 36 cases and the common age group affected was in late third decade. The patients sought medical treatment on an average of 3.41 years after appearance of melasma. About 28% of our patients reported that their disease exacerbated during sun exposure. Among 36 female patients, 10 reported pregnancy and 13 reported oral contraceptive as the precipitating factors. A positive family history of melasma was observed in 13 (36%) patients. Centrofacial was the most common pattern (47.22%) observed in the present study. Wood light examination showed the epidermal type being the most common in 55.55% and dermal and mixed were seen in 22.22% and 16.66% of the cases, respectively. We tried to find an association with endocrinal diseases and observed that 5 of them had hypothyroidism. The exact cause of melasma is unknown. However, many factors have been implicated in the etiopathogenesis of this disorder. Here we try to identify the causative factors and provocation to develop melasma.
منابع مشابه
Clinico-Epidemiological Study of Facial Hypermelanoses
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