Head and neck cancer constitutes the fifth highest cause of cancer in Spain. It is a neoplasm with a high possibility of cure if it is diagnosed in early stages, but unfortunately two thirds of the patients are diagnosed at an advanced loco-regional stage (stage III and IV, without metastasis). The multidisciplinary team, bringing together all professionals who specialize in the diagnosis and treatment of these tumors make the decision to establish the best sequence of individualized diagnosis, staging and treatment for each patient. This guide gives recommendations for diagnosis, staging and treatment for squamous cell carcinoma of the head and neck. In order to simplify the amount of information about any subsite of the head and neck area, the treatment recommendations are summarized as local disease, locally advance resectable and unresectable stages, function-preserving laryngeal treatment and recurrent and metastatic disease.