Symptoms of hemorrhage in the back of the head include skin trauma and hemorrhage in the back of the head. If it is a simple skin trauma, the main symptoms are mainly pain; bleeding in the back of the head can be manifested as dizziness, headache, nausea and vomiting, ataxia, visual field defects, blurred vision and other symptoms. 1. Dermal trauma of the back of the head: patients may have headache, dizziness, local redness, swelling, pain and other symptoms. 2. Hemorrhage in the back of the head: mainly refers to occipital lobe and cerebellum hemorrhage, symptoms of occipital lobe and cerebellum function impairment, such as visual field defect, dizziness, ataxia, etc., and symptoms of cranial hypertension, such as headache, nausea and vomiting, blurred vision, etc.. Cerebellar hemorrhage can be caused by compression of the fourth ventricle, affecting the cerebrospinal fluid circulation, resulting in a sharp increase in cranial pressure, which can lead to cerebral herniation and become life-threatening at any time. After the onset of this disease, we should consult the doctor immediately, complete the head CT and other examinations, and treat the symptoms after the diagnosis is clear.