Tehran University of Medical Sciences Iranian Journal of Parasitology 1735-7020 11 3 2016 12 21 364 370 Salman KHAZAEI Dept. of Epidemiology and Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran Shahab REZAEIAN Dept. of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran Zaher KHAZAEI Dept. of Epidemiology and Biostatistics, Kurdistan University of Medical Sciences, Kurdistan, Iran Elham GOODARZI Dept. of Epidemiology and Biostatistics, Kurdistan University of Medical Sciences, Kurdistan, Iran Somayeh KHAZAEI Dept. of Paramedicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran Mahdi MOHAMMADIAN Dept. of Social Medicine, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran Hamid SALEHINIYA Dept. of Public Health, School of Public Health, Zabol University of Medical Sciences, Zabol, Iran AND Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran Erfan AYUBI Dept. of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran Abdollah MOHAMMADIAN-HAFSHEJANI Social Determinants in Health Promotion Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran AND Dept. of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2016 09 28 2016 09 28 Background: This study aimed to investigate the epidemiological and clinical aspects of patients with hydatid cyst during 2011 to 2014. Methods: This cross-sectional study was conducted in Khorasan Razavi Province, the Northeast of Iran, from 2011 to 2014. The study population was all cases with hydatid cyst who diagnosed in governmental and private laboratories, hospitals and health centers (HC) in Khorasan Razavi Province during 2011-14. Results: The prevalence rate of hydatidosis was 1.44 per 100000 individuals. Of 357 cases, 54.9% were women, 40.3% rural, 45.8% housewives, and 3.4% were Afghan. The mean age of women was higher than that of men (39.13±18.9 compared to 34.7±17.9 yr, respectively, P-value=0.025). The highest proportion of cases (39.2%) was in the age group of 21-40 yr old. Abdominal pain was reported in 42.3% of cases. Liver involvement was the most common localization of hydatid cyst reported in 59.4% of patients, and 8.4% had multiple organ involvement. The common diagnosis methods of the disease were radiology (42.3%) followed by CT scan (37.8%). 45.9% of patients had domestic dog and hygiene principles of washing the vegetables was adhered by 6.7% of patients. Conclusion: The prevalence of human hydatidosis, as a most important neglected disease, should be considered by health policy-makers in public health domain. In addition, educational programs to better recognition of the disease symptoms, and to identify the infection sources are needed in high risk group of population. https://ijpa.tums.ac.ir/index.php/ijpa/article/view/1207 https://ijpa.tums.ac.ir/index.php/ijpa/article/download/1207/716