The bulging fontanel of babies nearly 8 months old need to seek medical attention to clarify the cause of the disease, and according to the different causes of targeted treatment, which can be followed up with observation, medication and surgery. 1. Follow-up observation: some babies may have transient bulging fontanel after illness, which may be a manifestation of benign intracranial hypertension, and can be evaluated by a physician and followed up for observation. 2. Medication: If the baby has fever, atrophy and spitting up at the same time, it should be alerted to intracranial infection. If necessary, lumbar puncture examination can be perfected to clarify the infection and pathogens, and then anti-infective and lowering cranial pressure treatments can be carried out in accordance with the doctor’s instructions. 3. Surgical treatment: can improve the cranial CT, cranial MRI and other examinations, if you consider the existence of intracranial space leading to intracranial hypertension, if necessary, feasible surgical treatment. The baby’s fontanel bulging, need to actively seek medical attention, clear cause for targeted treatment.