Herpes Zoster is rather a common skin disorder . It is the consequance
   of late reactivation of dormant varicella zoster virus in person who has
   already suffered from chickenpox. From the clinical point of view it is limited
   to one dermatome. the aim of this study was the survey of clinical and
   demographic features of Herpes Zoster patients who referred to the
   Department of Dermatology of Sina hospital of Hamadan between
   1994-1998 .

          This is a kind of descriptive retrospective cross-sectional study which the
   essential information was gathered by referring to the patients file and then
   the obtained information was analyzed.

          From 10486 patients that referred to the hospital , 173 (16%) cases had
   Herpes Zoster. 54.9% of them were male and the rest were female. The most
   prevalence group were 60-69 year-old patients (20.2%). The distribution of
   lesions were more common in thorasic dermatome (41%) and then cervical
   dermatome (24.3%) , lumbosacral (23.7%) and trigeminal (11.6%). 47.4% of
   the lesions were on the right and 48% were on the left and 4.6% in both side
   of the body. The highest frequency of the Herpes Zoster was in summer and
   the lowest one in spring.

          This study shows that the frequency of Herpes Zoster is higher among
   men than women. Also the number of patients in the young age group was
   considerable compared to the other study which carried out in the
   developed countries.