Malignant tumors may also appear in the back of neck, such as lymphoma and bone malignant tumor. 1. Lymphoma: Lymphoma is a malignant tumor originating from lymph nodes and lymphatic tissues, which can occur in any part of the body, and patients may present with painless lumps in the back of the neck. 2. Bone malignancy: The back of the neck can also be a cervical spine malignancy, i.e., a primary bone malignancy, or a secondary bone metastasis. Cancer can occur in the back of the neck. Cancer is a complex multi-step process, caused by a combination of chemical, physical, biological, genetic and other factors; different tumors, environmental and genetic factors play different roles and sizes. Malignant tumors can be initially diagnosed according to the patient’s symptoms and related examinations, and a definitive diagnosis depends on pathological examinations. Malignant tumors may appear in the neck, if there is any discomfort, it is recommended to go to the hospital in time for clear diagnosis and treatment.