[Functional disorders of the nose - definition, diagnostics and treatment options].

The surgical spectrum of functional rhinosurgery includes nasal septum surgery, septorhinoplasty and nasal concha surgery. Based on the German guideline "Disorders of the inner and/or external nose (with functional and/or aesthetic impairment)" published in April 2022, which was prepared on behalf of the German Society of Otorhinolaryngology, Head and Neck Surgery, we discuss the indications, diagnostic approaches, the planning of the surgery and postoperative care. The most common findings of the external nose with a functional impairment include crooked nose, saddle nose, and tension nose. Combined pathologies occur. Well-documented in-depth consultation is essential for rhinosurgical procedures. In the case of revision surgery, the possible necessity of autologous ear or rib cartilage should be considered. Despite correct surgical performance, no "guarantee" can be given for the surgical (long-term) result in rhinosurgery.