Functional Urology is the subspecialty of Urology which deals with the diagnosis and treatment of diseases which potentially disturb the dynamic balance of the urinary system; and particularly the lower urinary system. These disorders are related with either the storage phase (stress urinary incontinence), or the emptying phase of the bladder (difficulty in micturition or urinary retention). The term Functional Urology is a contemporary term which covers the area of Neuro-urology and Urodynamics, as well as Female Urology. The knowledge of the physiology of micturition and functional anatomy is useful for the understanding of the lower urinary system disorders. In addition, the basic principles of Urodynamics as a concept, but as a laboratory test as well, are necessary for a basic understanding of the field of Functional Urology. In conclusion, this course aims basically to make the students understand and come in touch with the wide range of the disorders of Functional Urology, as well as to show the importance of the used diagnostic techniques and the main principles of treatment options.