Prof. Birutė Žilaitienė is a prominent endocrinologist and andrologist in Lithuania, specializing in reproductive endocrinology and andrology. She has a strong academic background, having completed her doctorate in endocrinology and andrology and holding diplomas from the European Society of Sexual Medicine. Prof. Žilaitienė has contributed significantly to endocrinology research, including studies on male hypogonadism and male infertility, and has been involved in various international conferences and congresses. She is also recognized for her work in rare endocrine diseases and thyroid diseases. Prof. Žilaitienė is a member of several professional organizations, including the European Society of Sexual Medicine and the European Society of Endocrinology, and has published extensively in her field.