Increased hemoglobin in the blood: causes, signs, symptoms, danger

The hemoglobin level is determined by the results of a clinical blood test. Everyone knows that low hemoglobin is bad and you need to raise it, but elevated hemoglobin in the blood also does not mean excellent health, because a significant deviation from the norm to a big side can lead to poor health and some complications.

Table of contents:
  • Normal level of hemoglobin in the blood
  • Symptoms
  • Reasons why hemoglobin is increased
  • What is high hemoglobin dangerous for?
  • Lowering blood levels

What is hemoglobin in blood

Hemoglobin is a component of red blood cells in the form of a complex compound of protein and iron. Its main purpose is to transport oxygen to the cells of organs and tissues and carry away the exhaust carbon dioxide. Insufficient concentration of hemoglobin is called anemia, with this condition the body is not fully provided with oxygen, and other vital signs deteriorate accordingly.

In turn, increased hemoglobin increases the risk of blood clotting, resulting in clogged blood vessels, blood clots appear and oxygen transport is also hampered. To understand whether it is worth worrying and how drastic measures to take, you need to know which indicator is considered optimal for good health.

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Normal hemoglobin level in blood

Hemoglobin is measured in g / dl or g / l. For men, this figure is on average slightly lower than for women. Depending on age, hemoglobin levels also change. We give some norms of hemoglobin for male and female.


  • 3 months - 11.55 g / dl
  • 6 months - 11.94 g / dl
  • 1 year - 11.84 g / dl
  • 3 years - 12.08 g / dl
  • teenage - mature age - 12-14g / dl.


  • 3 months - 11.44 g / dl
  • 6 months - 11.69 g / dl
  • 1 year - 11.67 g / dl
  • 3 years - 11.83 g / dl
  • teenage - mature age - 135-16 g / dl.

Hemoglobin 160 g / l for men does not exceed the norm.

Thinking about serious treatment is necessary if hemoglobin is increased by more than 10 units.

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The main signs by which you can judge an increase in hemoglobin level are excessive fatigue, drowsiness, loss of appetite. Sometimes the complexion is still changing: excessive pallor and redness.

Doctors can still suggest an increase in hemoglobin, judging by the increased viscosity and blood density. As a consequence, an increased level of hemoglobin may result in the formation of blood clots and blood clots. Also, elevated hemoglobin can be recognized by abnormalities in the urogenital system and the gastrointestinal tract.

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Reasons why hemoglobin is elevated

Deviation in hemoglobin level is not a disease, it is just a symptom that accompanies some diseases. Among them:

  • congenital heart disease;
  • cardiovascular failure;
  • respiratory failure;
  • excessive accumulation of dense tissue in the lungs - fibrosis;
  • deviation in the receipt of the body of the hormone responsible for the formation of red blood cells;
  • intestinal obstruction;
  • a sharp increase in the red blood cell level for any reason( for example, blood transfusion);
  • oncological diseases.

But an elevated hemoglobin content in the blood can be associated not only with various kinds of diseases, but also with the living environment and lifestyle.

So, people living in the mountains or spending a large amount of time at a high altitude from the ground have a standard hemoglobin level higher than that which is accepted by the norms.

Why is high hemoglobin a normal state for those who breathe the discharged mountain air? The fact is that the higher from the ground, the less oxygen in the air. In order for a person to feel normal, the body must compensate for the lack of oxygen with a high content of hemoglobin.

Also in smokers, the causes of elevated hemoglobin are due to the fact that after a long possession of this harmful habit, the tissues are not sufficiently saturated with oxygen.

Another cause of elevated hemoglobin is a lack of vitamin B12 or folic acid in the body. These nutrients come to us with food. So you need to revise your diet.

Active outdoor sports also increase hemoglobin levels. Among them are cycling, skiing, snowboarding, climbing and others. This is due to the greater need for oxygen and the desire of the body to compensate for this fact, which means increased hemoglobin.

The time of day at which the analysis was submitted also has an important role. What does hemoglobin say, if the study did not reveal any abnormalities in the body? Perhaps an error in the initial analysis or sampling at the peak of hemoglobin increase. Most people have it at 8 am, the minimum hemoglobin level is at 8 pm.

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What is high hemoglobin dangerous for?

For some reason, for many high hemoglobin, the causes and symptoms do not cause much concern. However, this can serve at least as a reason for the appearance of unpleasant complications, and as a maximum of serious pathologies.

  1. Thick blood

High hemoglobin accompanies an increase in blood viscosity, as a result of which, as already stated above, blood clots and areas with increased density may appear. This can cause thrombophlebitis - a build-up of blood clots in the vessels, and under even more serious circumstances - thromboembolism - a disease in which blood clots join organs and interfere with their normal functioning.

  1. Heart attacks, strokes.

Often, if hemoglobin is above the norm for a long time, it can provoke such serious consequences. Strokes and heart attacks are also caused by increased blood viscosity, which is associated with the previous subparagraph.

  1. Delayed Development.

For children, elevated hemoglobin can result in a lack of cognitive functionality, as well as confusion.

  1. Feeling unwell.

Dizziness, weakness, fatigue and lack of appetite are the eternal companions of elevated hemoglobin.

  1. Changes in the composition and type of blood.

Increased hemoglobin can contribute to the change in the form of red blood cells. They can take the form of a crescent, which affects several body functions at once. This disease is called crescent anemia.

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Lowering blood levels of

If what makes hemoglobin rise is not associated with serious pathologies, then hemoglobin can be affected by a specific diet or drug.

Among the drugs that are in relatively free access, we can distinguish those that are aimed at thinning the blood: Curantil, Cardiomagnyl, Trental, or ordinary aspirin.

Food should be guided by some rules:

  1. Exclusion or reduction in the diet of red vegetables, fruits, berries. Especially a lot of iron, which contributes to the improvement of hemoglobin, is contained in beets. A separate article lists the main products that increase the level of hemoglobin in the blood.
  2. Exception at the time of therapy from the diet of the liver, kidneys and hearts. They also contribute to an increase in iron in the body.
  3. Drink more water. But to get involved in such an exercise too much is also not desirable, the load on the heart may increase excessively. Based on the ratio of 40 ml per 1 kg of the body.
  4. Dry mushrooms, fruits are the richest in iron content. They are temporarily also better to refuse.
  5. Milk and dairy products on the contrary reduce the body's ability to absorb iron. This property can be used to reduce hemoglobin.

There are other ways to reduce hemoglobin levels. For example, donate blood as a donation. This will be both useful for you and enjoyable for society.

But in the most extreme case, you can use a medical procedure called eritrophoresis. It removes excess red blood cells from the blood stream.

If you do not know what hemoglobin in the blood means, you will not be able to effectively treat it, which means that even proper nutrition may not affect the results of the analysis. And inaction with respect to the main root cause may even bring on complications.

Do not neglect your condition. Share in the comments how you struggle with elevated hemoglobin and why hemoglobin in the blood rises in your case.

God bless you!