The nasal valve area is not a singular structure, but a complexthree dimensional construct consisting of several morphologicalstructures. From the physiologic point of view, it is the place ofmaximum nasal Flow resistance (“flow limiting segment”). Therefore,according to Poiseuille’s law, even minor constrictions of this area resultin a clinically relevant impairment of nasal breathing for the patient.This narrow passage, also called “ostium internum nasi”, is formedby the mobile lateral nasal wall, the anterior septum with the swell body,the head of the inferior turbinate and the osseous piriform aperture.Within the framework of etiology, static and dynamic disorders of thenasal valve area have to be distinguished since they result in differenttherapeutic measures.In the context of diagnosis, the exploration of the case history forassessing the patient’s extent of suffering and the clinical examination arevery important.In addition to the presentation of the basics of disorders of thenasal valves, we focus on the treatment of dynamic disorders that mainlyconstitute the more important therapeutic issue.In this context, we distinguish between stabilization techniquesthrough grafts or implants and stabilizing suture techniques. Following athorough analysis, the correction of static nasal valve disorders requiresvarious plastic-reconstructive measures using transposition grafting andskin or composite grafts.