Despite the extensive salt iodization programme implementation, theprevalence of goiter has not reduced much. The most frequent cause of hypothyroidism and goiter in iodine sufficient areas is Hashimoto's thyroiditis (HT). This study records the clinical presentation, biochemical status, ultrasonographic picture and histomorphological appearance of this disease in a coastal endemic zone for goiter.Clinical, biochemical & ultrasound compliments the diagnosis with its characteristic features but histomorphology is confirmatory. Association of HT with malignancy requires a close follow up of these patients. Also, we suggest that in an endemic zone for goiter, all women of the child bearing age should be screened for HT.