Signs and symptoms of a brain tumor in children vary greatly and depend on the brain tumor type, size, location and rate of growth. Some signs and symptoms may not be easy to detect because they're similar to symptoms of other conditions. Some of the more common symptoms of a brain tumor in children include: 
Headaches, which may become more frequent and more severe
Feeling of increased pressure in the head
Unexplained nausea or vomiting
Abrupt onset of vision problems, such double vision
 Other possible signs and symptoms, depending on the tumor location, include: 
A fuller soft spot (fontanel) on the skull in babies
Seizures, especially when there's no history of seizures
Abnormal eye movement
Slurred speech
Trouble swallowing
Loss of appetite; or in babies, difficulty feeding
Difficulty with balance
Trouble walking
Weakness or loss of sensation in an arm or a leg
Weakness or drooping on one side on the face
Confusion, irritability
Memory problems
Personality or behavior changes
Hearing problems
