Dehydroepiandrosterone sulfate (DHEAS) serum analysis is a laboratory test used to measure the level of DHEAS, a hormone primarily produced by the adrenal glands. This analysis is important for evaluating hormonal function and can help diagnose a range of medical conditions, such as adrenal disorders, polycystic ovary syndrome (PCOS), and symptoms of androgen excess like acne or abnormal hair growth. This test is recommended when symptoms related to hormonal imbalance appear or as part of a comprehensive adrenal evaluation. The results help physicians determine the need for further testing or appropriate treatment.