Q. Can dehydration be associated with headaches?

Answered by
Dr. Sugreev Singh
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on May 14, 2022

Hi doctor,

I keep getting headaches throughout the day multiple times for more than a week. I think they are because of less sleep and disturbed sleep cycle, but I want to be sure it is nothing serious. I get a headache when I look down, wake up, and randomly throughout the day.



Welcome to

I can understand your concern. There are various causes of headaches, and yes, sleep disturbance can be a cause, and another reason can be due to dehydration. Such a headache is seen when you look down and wake up. So I would suggest you take plenty of fluids and good rest. Consume fluids like juices and water. Please take tablet Dolo 650 once after a meal when the headache is severe. Take it for three days. Do you have any stress? Do you use screens or phones a lot? Please let me know. Thank you.

The Probable causes:

Sleep disturbance.

Investigations to be done:

CBC (complete blood count), Blood pressure.

Differential diagnosis:


Probable diagnosis:


Treatment plan:

Tablet Dolo 650 (Acetaminophen 650 mg) once after a meal when the headache is severe for three days.

Preventive measures:

Drink plenty of water and juices.

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