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Try one of these related symptoms.
Have a headache
Pulsating headache
Headache on the side of my head
Headache over the entire head
Headaches in back of head
Headache on one side
I have a headache when I cough
Headache at night
Bilateral headache
Headache aura
Light sensitivity headache
Numbing headache
About the Symptom
Constant pain in the head. The pain may be sharp, throbbing, or a dull ache. There are many causes of headache, including stress, changes in eating or sleeping, and alcohol use.
When to See a Doctor
Seek professional care if you experience any of the following symptoms
- Nausea / vomiting
- Neck pain / stiffness
- Photophobia
- Fever
- Seizure attack
- Sensation of incomplete voiding
Possible Causes
Generally, Headache can be related to:
- Dialysis Disequilibrium Syndrome (DDS)
Dialysis disequilibrium syndrome occurs when a group of neurological symptoms arise in patients on hemodialysis due to the sudden and rapid removal of urea, a waste product, from their blood. These symptoms include nausea, headaches, vomiting, and restlessness. More severe symptoms can lead to seizures and comas.
- Benign Exertional Headache
A harmless headache caused by physical exertion like intense exercise, sneezing, or straining during bowel movements. The exact cause is unknown, but it's thought to be related to blood vessel narrowing during physical activity.
- Tension Headache
A type of headache with a band-like, pressing sensation at the forehead and sides. Causes include physical stress, such as long periods of desk work and driving, or mental stress.
- Cluster Headache
- Acute Disseminated Encephalomyelitis
- Occipital Neuralgia
- Migraine
- Hangover
Related Serious Diseases
Sometimes, Headache may be related to these serious diseases:
- Carbon Monoxide Poisoning
Carbon monoxide poisoning typically occurs from inhaling carbon monoxide (CO) gas at high levels. This gas can be caused by vehicle exhaust or gas leaks in a home or worksite. Large exposures can result in loss of consciousness, arrhythmias, seizures, or death.
- Cerebral Venous Sinus Thrombosis (CVT)
Doctor's Diagnostic Questions
Your doctor may ask these questions to check for this symptom:
- Do you have a headache?
- When did you first notice the headache?
- Which of the following best describes how your headache appeared?
- How often do you have a headache?
- Do you have pain in your temples?
Reviewed By:
Bret Mobley, MD, MS (Neuropathology)
Dr. Mobley graduated from the University of Michigan Medical School, completing a masters degree in neuroscience between his second and third years of medical school. He trained as a resident in pathology at Stanford University Hospital before joining the faculty of Vanderbilt University Medical Center in Nashville Tennessee in 2010. He was promoted to Associate Professor in 2018 and to Neuropathology Division Director in 2020.
Shohei Harase, MD (Neurology)
Dr. Harase spent his junior and senior high school years in Finland and the U.S. After graduating from the University of Washington (Bachelor of Science, Molecular and Cellular Biology), he worked for Apple Japan Inc. before entering the University of the Ryukyus School of Medicine. He completed his residency at Okinawa Prefectural Chubu Hospital, where he received the Best Resident Award in 2016 and 2017. In 2021, he joined the Department of Cerebrovascular Medicine at the National Cerebral and Cardiovascular Center, specializing in hyperacute stroke.
Yoshinori Abe, MD (Internal Medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
Content updated on Jan 29, 2025
Following the Medical Content Editorial Policy
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- Pain from the headache is to a bearable degree
- The smell of cigarettes make my headache worse
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Ubie’s symptom checker demonstrated a Top-10 hit accuracy of 71.6%, surpassing the performance of several leading symptom checkers in the market, which averaged around 60% accuracy in similar assessments.
Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1