Resection of the posterior nasal nerve is often performed in the patients with intractable and severe chronic rhinitis. However, massive nasal bleeding has been pointed out as a serious postoperative complication. We report here 3 patients with postoperative bleeding, who were successfully treated with prompt hemostasis. From the basis of the perioperative findings, the bleeding point was derived from the central part of the resected trunk or major branches of the sphenopalatine artery. It was concluded that careful attention should be paid during and after surgery involving resection of the posterior nasal nerve.