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Can Anemia Cause High Blood Pressure?
Medically Reviewed By
Dr. Roger H – General Practitioner
| Last Reviewed: February 26, 2026
Key Points
- Anemia occurs due of a blood-based disorder. This is a condition when your body has low levels of hemoglobin or lesser production of red blood cells. It also happens when your red blood cells do not function well, restricting the supply of oxygen to your organs and tissues.
- It can affect anybody. This blood condition does not directly increase your blood pressure though. But severe anemic condition can cause pulmonary hypertension.
- Anemia is a treatable health condition whether it is mild or severe. This condition is of many types: iron deficiency anemia, hemolytic, and aplastic anemia. Sickle cell anemia and thalassemia are other types of anemia. Multiple factors can result in anemia. For example, a surgery where a part of your stomach or intestine is removed may lead to anemia.
Anemia is a treatable health condition. However, it is not normal for you to turn anemic. It can be a sign of any other underlying health condition. You should consult your caregiver if you are anemic. If you ignore it, this blood condition can become a life-threatening disorder.
Is Hypertension a Result of Anemia?
Although not common, anemia may lead to hypertension in some people. There is no direct effect or cause though - linking anemia to high blood pressure.
If you have a severe anemic condition, it can trigger a protective reflex. It could also deplete oxygen levels in your tissues. Your body works to compensate this loss in several ways; say, by increasing your heart rate and blood pressure in your lungs. This may result in an elevated blood pressure. In medical parlance, it is known as pulmonary hypertension.
As per few research, there is an indirect link between anemia and hypertension. However, a few other factors do contribute to an increase in your blood pressure. These are:
Hormonal changes when you experience a severe anemic condition, you witness hormonal changes and an endocrinal imbalance. Your body may release a few hormones to tighten your blood vessels. Tightening of blood vessels can lead to restricted blood flow in your system, resulting in high blood pressure.
Vasodilation is a condition where your body causes the blood vessels to expand i.e. increase in its diameter, to pump more blood throughout your system. This increases your cardiac output. When your body experiences an increased cardiac output, your heart may beat faster (i.e. increased heart rate) pumping more blood with each beat. This helps deliver oxygen to your tissues, but can increase your blood pressure levels.
Being anemic can also damage your kidney function, and it can result in few other cardiac ailments. These can directly lead to high blood pressure.
What Kind of Doctor Treats Anemia?
You can always consult your family doctor to check for symptoms of anemia. A hematologist is however a specialist; he / she can diagnose blood disorders. You can also consult primary care physicians. A primary care physician can be your own family doctor, a pediatrician. Generally, caregivers can help you manage anemia and the adverse effects of this blood condition.
Your primary care doctor will initially treat you for anemia when symptoms are mild. Tests ordered for include complete blood count CBC, to rule-out or confirm incidence of anemia. Based on your test results, your doctor will recommend iron supplements or medications; a few changes may also be recommended to your daily habits and diet.
Only if the symptoms tend to worsen, your doctor may refer you to other specialists. Referrals may be made to a hematologist, cardiologist, or a gastroenterologist the choice depends on the type of your anemic condition and the stage it is in.
Your hematologist will perform a thorough examination to ascertain the severity of anemia. If you have iron-deficiency anemia, it may be due to a gastrointestinal problem like say, inflammatory bowel disease IBD or celiac disease. In such cases, your hematologist may refer your condition to a gastroenterologist.
If your anemic condition is severe, relating to chest pain, heart palpitations, shortness of breath, or a pounding heart, then your doctor will immediately refer you to a cardiologist for a detailed evaluation.
In general, your caregiver will issue you a complete health summary, based on your diagnostic test results. This summary provides a proper understanding of your health condition.
Can Anemia Cause Headaches?
Yes, anemia can cause headaches! Migraines are more likely if you are living with iron-deficiency anemia. This happens mainly due to a lack of oxygen-rich blood supply to your cerebral system. This condition leads to a few other discomforts like feeling dizzy, being lightheaded, nauseated, etc.
Other conditions of anemia may also cause headaches. These are conditions like sickle-cell and vitamin-deficiency anemia. In addition, research shows a significant link between chronic headache and deficiency of iron.
Beware of a few other symptoms of anemia: these are cold-feet and chilling of hands, tiredness, palpitations, marked drop in appetite levels, gasping for breath, etc. You are likely to witness loss of scalp hair, numbing of fingers and toes, a tingling sensation and development of ulcers in your mouth. Most of these symptoms are either mild or severe; these can be treated with medications and a balanced diet.
During treatment for anemia, if you experience any unusual symptoms, you need to rush immediately to the emergency medical care unit. Some intolerable symptoms include chest pain and sweating profusely, panting or wheezing, passing out, etc. All such symptoms are of high-risk, and need immediate clinical assistance.
You may also experience variations in your heartbeat and pulse rate; this is not a normal thing to experience. If you encounter such signs, remain calm and never panic. If you are in the US, call 911 without any further delay. Those living in a Canadian province can either call Health Canada or rush to healthcare setting on an emergency mode.
EDITORIAL SOURCES
Global Discount Drugs follows sourcing guidelines to ensure the accuracy of its content. We use only trustworthy sources, including peer-reviewed studies and information from top institutions.
URLs Referred
Hemoglobin Level Is Positively Associated With Blood Pressure in a Large Cohort of Healthy Individuals | Hypertension
Association of anaemia with long-term mortality among patients with hypertensive crisis in the emergency department - PMC
Hematological disorders and pulmonary hypertension - PMC
Kevin P draws on 10+ years of health expertise to share actionable wellness tips. He focuses on making health achievable for everyone.
Medically Reviewed By
Dr. Roger H – General Practitioner | Last Reviewed: February 26, 2026
Key Points
- Anemia occurs due of a blood-based disorder. This is a condition when your body has low levels of hemoglobin or lesser production of red blood cells. It also happens when your red blood cells do not function well, restricting the supply of oxygen to your organs and tissues. - It can affect anybody. This blood condition does not directly increase your blood pressure though. But severe anemic condition can cause pulmonary hypertension. - Anemia is a treatable health condition whether it is mild or severe. This condition is of many types: iron deficiency anemia, hemolytic, and aplastic anemia. Sickle cell anemia and thalassemia are other types of anemia. Multiple factors can result in anemia. For example, a surgery where a part of your stomach or intestine is removed may lead to anemia.Is Hypertension a Result of Anemia?
Although not common, anemia may lead to hypertension in some people. There is no direct effect or cause though - linking anemia to high blood pressure. If you have a severe anemic condition, it can trigger a protective reflex. It could also deplete oxygen levels in your tissues. Your body works to compensate this loss in several ways; say, by increasing your heart rate and blood pressure in your lungs. This may result in an elevated blood pressure. In medical parlance, it is known as pulmonary hypertension. As per few research, there is an indirect link between anemia and hypertension. However, a few other factors do contribute to an increase in your blood pressure. These are: Hormonal changes when you experience a severe anemic condition, you witness hormonal changes and an endocrinal imbalance. Your body may release a few hormones to tighten your blood vessels. Tightening of blood vessels can lead to restricted blood flow in your system, resulting in high blood pressure. Vasodilation is a condition where your body causes the blood vessels to expand i.e. increase in its diameter, to pump more blood throughout your system. This increases your cardiac output. When your body experiences an increased cardiac output, your heart may beat faster (i.e. increased heart rate) pumping more blood with each beat. This helps deliver oxygen to your tissues, but can increase your blood pressure levels. Being anemic can also damage your kidney function, and it can result in few other cardiac ailments. These can directly lead to high blood pressure.What Kind of Doctor Treats Anemia?
You can always consult your family doctor to check for symptoms of anemia. A hematologist is however a specialist; he / she can diagnose blood disorders. You can also consult primary care physicians. A primary care physician can be your own family doctor, a pediatrician. Generally, caregivers can help you manage anemia and the adverse effects of this blood condition. Your primary care doctor will initially treat you for anemia when symptoms are mild. Tests ordered for include complete blood count CBC, to rule-out or confirm incidence of anemia. Based on your test results, your doctor will recommend iron supplements or medications; a few changes may also be recommended to your daily habits and diet. Only if the symptoms tend to worsen, your doctor may refer you to other specialists. Referrals may be made to a hematologist, cardiologist, or a gastroenterologist the choice depends on the type of your anemic condition and the stage it is in. Your hematologist will perform a thorough examination to ascertain the severity of anemia. If you have iron-deficiency anemia, it may be due to a gastrointestinal problem like say, inflammatory bowel disease IBD or celiac disease. In such cases, your hematologist may refer your condition to a gastroenterologist. If your anemic condition is severe, relating to chest pain, heart palpitations, shortness of breath, or a pounding heart, then your doctor will immediately refer you to a cardiologist for a detailed evaluation. In general, your caregiver will issue you a complete health summary, based on your diagnostic test results. This summary provides a proper understanding of your health condition.Can Anemia Cause Headaches?
Yes, anemia can cause headaches! Migraines are more likely if you are living with iron-deficiency anemia. This happens mainly due to a lack of oxygen-rich blood supply to your cerebral system. This condition leads to a few other discomforts like feeling dizzy, being lightheaded, nauseated, etc. Other conditions of anemia may also cause headaches. These are conditions like sickle-cell and vitamin-deficiency anemia. In addition, research shows a significant link between chronic headache and deficiency of iron. Beware of a few other symptoms of anemia: these are cold-feet and chilling of hands, tiredness, palpitations, marked drop in appetite levels, gasping for breath, etc. You are likely to witness loss of scalp hair, numbing of fingers and toes, a tingling sensation and development of ulcers in your mouth. Most of these symptoms are either mild or severe; these can be treated with medications and a balanced diet. During treatment for anemia, if you experience any unusual symptoms, you need to rush immediately to the emergency medical care unit. Some intolerable symptoms include chest pain and sweating profusely, panting or wheezing, passing out, etc. All such symptoms are of high-risk, and need immediate clinical assistance. You may also experience variations in your heartbeat and pulse rate; this is not a normal thing to experience. If you encounter such signs, remain calm and never panic. If you are in the US, call 911 without any further delay. Those living in a Canadian province can either call Health Canada or rush to healthcare setting on an emergency mode. EDITORIAL SOURCES Global Discount Drugs follows sourcing guidelines to ensure the accuracy of its content. We use only trustworthy sources, including peer-reviewed studies and information from top institutions. URLs Referred Hemoglobin Level Is Positively Associated With Blood Pressure in a Large Cohort of Healthy Individuals | Hypertension Association of anaemia with long-term mortality among patients with hypertensive crisis in the emergency department - PMC Hematological disorders and pulmonary hypertension - PMC
Kevin P draws on 10+ years of health expertise to share actionable wellness tips. He focuses on making health achievable for everyone.
