U.S. doctors online nowAsk doctors free
A 40-year-old member asked:

Can severe anemia cause dizziness?

1 doctor answer3 doctors weighed in
Dr. William Goldie
Pediatric Neurology 49 years experience
Yes: Blood cells are what carry oxygen to the brain. If you have too few blood cells then you may have too little oxygen getting to the brain. This may especially occur when you stand up or when you are exercising. If the brain is not getting enough blood flow, you will feel light headed and may even faint. That is why you have to be careful after blood donation.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jan 9, 2020


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.