Metabolic syndrome (Met S) is a clustering of risk factors comprising of abdominal obesity, dyslipidemia, elevated blood pressure, and abnormal glucose tolerance. The prevalence of Met S has been increasing in the last few years throughout the world. Psoriasis has consistently been associated with Met S as well as its various components. However, the association is no longer limited to psoriasis alone. Various dermatological conditions such as lichen planus, androgenetic alopecia, systemic lupus erythematosus, skin tags, acanthosis nigricans, and even cutaneous malignancies have also been found to be associated with this syndrome. Though chronic inflammation is thought to be the bridging link, the role of oxidative stress and endocrine abnormalities has recently been proposed in bringing them together.

Beetle dermatitis should be included in the differential diagnosis of the acute onset of vesiculobullous lesions in the endemic areas.

Background:The knowledge of the prevalence of common dermatoses will be useful for optimum use of valuable resources of the country.Aim:The aim of the study is to determine the pattern and prevalence of psoriasis, vitiligo and atopic dermatitis (AD) in India.Materials and Methods:This was a hospital-based study conducted on a single day in one medical college each in four zones of India.Results:The point prevalence of dermatological cases was 9.25%. The point prevalence of psoriasis, vitiligo and AD were 8%, 9.98% and 6.75% respectively. Chronic plaque type psoriasis was the most common (50%) clinical pattern. The most common site of involvement of psoriasis was the palms. Stable type of vitiligo was common which accounted for 65.21%. Lower lip was involved in 75% of mucosal vitiligo. Lower limbs were the most common site of onset of vitiligo. AD was most prevalent in the first decade (40.7%). Personal history of atopy was present in (59.5%) patients. Dry skin was present in 92.5% of patients.Conclusions:Our data correlates with previous hospital-based prevalence studies of psoriasis, vitiligo and AD.