First Time User? Sign Up Now
Home > Health Library > Anemia
Having anemia means you don't have enough red blood cells. Your body needs these cells to carry oxygen from your lungs to the rest of your body.
Anemia is fairly common. It's often easily treated. Sometimes, though, it's serious.
There are three main reasons why you might get anemia:
Losing too much blood
This is a common cause of anemia, especially for women who have heavy bleeding during their periods.
It can also happen with ulcers or other problems that cause bleeding inside the body.
Not making enough red blood cells
A balanced diet usually provides the vitamins and minerals your body needs to make red blood cells. You might get anemia if your food doesn't include enough iron, folic acid, vitamin B12, and vitamin C.
A pregnant woman needs to make extra red blood cells for the growing baby. So anemia during pregnancy is common.
Sometimes a long-term disease keeps your body from making enough red blood cells. Examples include kidney disease, arthritis, diabetes, and cancer.
Destroying too many red blood cells
Red blood cells last about 4 months. That's why your body needs to keep making new ones. But there are some problems that can destroy red blood cells sooner than that.
For example, diseases like sickle cell diseaseand thalassemiadestroy red blood cells before their time. And some medical treatments, like chemotherapy, can destroy red blood cells.
When you have anemia, you may feel dizzy, tired, and weak.
You may also feel your heart pounding or feel short of breath. It may be hard to focus and think clearly.
A blood test, sometimes done as part of a routine exam, will tell your doctor if you have anemia. Then your doctor will do other tests to figure out what's causing it.
Sometimes all that's needed is a balanced diet. Some people need to take iron pills. Others may need a vitamin like folic acid or vitamin B12.
You may also get treatment for any problem that is causing the anemia, such as ulcers or a problem in the bone marrow.
People who are very anemic may need blood transfusions. They may need other treatments too, such as medicines to suppress the immune system.
Other Works Consulted
National Heart, Lung, and Blood Institute (2012). What is anemia? Available online: http://www.nhlbi.nih.gov/health/health-topics/topics/anemia. Accessed June 10, 2014.
ByHealthwise StaffPrimary Medical ReviewerE. Gregory Thompson, MD - Internal MedicineAdam Husney, MD - Family MedicineMartin J. Gabica, MD - Family MedicineSpecialist Medical ReviewerCaroline S. Rhoads, MD - Internal Medicine
Current as ofOctober 9, 2017
Current as of:
October 9, 2017
E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine & Caroline S. Rhoads, MD - Internal Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2018 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.
Nash UNC Health Care
Employee Login - NHCS Outlook
Employee Login - UNC Outlook
Clinical Education for Students
Copyright 2018 UNC Health Care. All rights reserved.