Hemorrhage after secondary radiotherapy for nasopharyngeal cancer may be caused by tumor invading surrounding large blood vessels, or it may be caused by bleeding of tumor itself, or it may be caused by damage to normal nasal mucosa by radiotherapy. Treatment not only needs to be directed at nasopharyngeal cancer, but also needs to avoid asphyxiation caused by hemorrhage and carry out treatments such as bleeding stoppage. Nasopharyngeal cancer patients may suffer from bleeding due to the cancer invading the surrounding large blood vessels, or the cancer itself may suffer from necrosis and ulceration, which may lead to bleeding. Treatment should continue anti-tumor therapy, suction blood from oral cavity and nasal cavity in time to avoid asphyxiation caused by blood obstruction to airway, and drugs such as posterior pituitary hormone, growth inhibiting hormone and phenolsulfonyl ethylamine can be given to stop bleeding. For patients with excessive bleeding, surgical embolization of the bleeding vessels can be used to stop bleeding, and blood transfusion should also be given if necessary. Normal nasal mucous membrane damage caused by radiotherapy can also lead to nasal bleeding, which is usually small in volume and can be reduced by using nasal drops to moisten the nasal cavity. If symptoms of hemorrhage after secondary radiotherapy for nasopharyngeal carcinoma occur, one should consult the physician in time and ask him/her to dispose of it.