Have bad headache on the left side of the head?

Migraine or more. If headaches are always one-sided be suspicious of causes other than migraine, which is frequently one-sided. If even 1% of headaches are right-sided, you have less to worry about. But 100% of headaches being one-sided (either right or left) suggests a structural problem--which may be quite serious (avm, tumor, aneurysm, vasculitis, cyst, skull or sinus lesion, etc).

Related Questions

I have real bad headaches on the left side of my head above my eye for the past 2 months should I see dr?

Headache. Yes you should see a doctor. Your doctor will obtain a history and perform a physical examination and determine the best diagnostic test to establish te cause of your headache and pro levied relief. Hope you feel better soon. Read more...