Hello, I have gone through your query and understand your concern. You have to understand that tumors and malformations are very rare and are also the least cause for headache in children. Some of the most common cause are School related such as assignments, work and exams, Home related such as frequent quarrel between parents, Friends related etc. These may cause the anxiety and depression in child. As the child are able to tolerate these burdens and this may reflect as frequent headache. Try to identify when he have such episode of headache? Whether he vomits or any nausea during his headache? Is there any co- relation between his school or family problems. Some times external stress like noise and heat which we usually do not think of may also cause frequent headache. Thus history and follow up is essential in frequent headache in children. If the headache persists for years or having symptoms like fall, loss of consciousness etc then investigation like CT and MRI is needed. In many children, these headache may goes as one grows. Hope this helps. Please write back for further queries. Wishing you good health.