What is anemia?

Anemia is due to lack of haemoglobin in the blood which is below the normal level or due to less than normal levels of red blood cells in blood.

The haemoglobin helps carry oxygen in blood. Lack of haemoglobin thus causes deficiency of life giving oxygen to vital organs. (1-4)

Types of anemia

There are various causes of anemia. It could be due to:

Decreased production of RBCs in blood
Increased blood loss OR
Excessive destruction of RBCs
Causes of anemia
Anemia most commonly occurs due to nutritional problems. This includes lack of iron in the diet.
Iron deficiency is the commonest form of anemia.
In the United States 7% of toddlers ages 1 to 2 years old and 9-16% of menstruating women suffer from iron deficiency.
The poorer nations 30-70% of the people have iron deficiency anemia.
Iron and anemia

Since iron is needed for the manufacture of haemoglobin in the body its deficiency can lead to anemia.
Iron is found in meat, dried fruit and some vegetables.
Lack of iron may be caused due to bleeding especially in stomach ulcers or within the intestines.
Women before menopause commonly suffer from iron deficiency anemia due to heavy periods and increased demands during pregnancy.
Vitamins and anemia

Certain vitamins like vitamin B12 and folic acid or folate are also essential in the normal production of RBCs in blood. Their lack in diet may lead to anemia.
Both vitamin B12 deficiency and folate deficiency are more common in older people, affecting around 1 in 10 people above the age of 75.
There is an inherited condition called Pernicious anemia where patients find it difficult to use the vitamin B 12 in diet for production of healthy RBCs. This is a rare condition and affects 1 in 10,000 people in northern Europe.
Other causes of anemia

Increased blood loss due to surgery or major trauma may lead to anemia.
Excessive destruction of RBCs may occur due to certain conditions called haemolytic anemias. These are often inherited and include Sickle cell anemia, Thalassemia etc. Anemia can also occur in severe infections, cancers and due to exposure to a drug or toxin.
For example, the RBCs are made in bone marrow. If there is cancer in the marrows a shortage of good red blood cells results. This is called aplastic anaemia and may also occur with blood cancers like leukaemia.
Symptoms

Anemia signs and symptoms vary depending on the cause of your anemia. They may include:

Fatigue
Weakness
Pale or yellowish skin
Irregular heartbeats
Shortness of breath
Dizziness or lightheadedness
Chest pain
Cold hands and feet
Headache
At first anemia can be so mild that it goes unnoticed. But symptoms worsen as anemia worsens.

Treatment of anemia

Treatment depends on the cause of the anaemia. If the anaemia is due to a lack of iron, eating iron-rich food or iron supplements may be given. If, however, the cause of anemia is deeper like internal bleeding or cancers, the cause should be explored before treatment. When the anaemia is more severe, a blood transfusion may be prescribed.

Anemia - Causes, Symptoms & Treatment Of It!

Anemia is a medical condition in which the red blood cell count or hemoglobin is less than normal. Haemoglobin is the main part of red blood cells and it binds oxygen. If you have few or abnormal red blood cells, or your hemoglobin is low, the cells in your body will not get enough oxygen. Anemia can last temporarily or for a long-term, and it can range from mild to severe. If you suspect you have anemia, see your doctor immediately because it can be a warning sign of a serious illness. A person who has anemia is called anemic.

Sign and symptoms of anemia: Because a low blood cell count decreases oxygen delivery to every tissue in the body, anemia can cause a variety of signs and symptoms. It can also worsen the state of any other underlying medical condition. If anemia is mild, it may not cause any symptoms. If anemia is chronic, the body may adapt and compensate for the change. In this case, there may not be any symptoms until anemia becomes more severe. Anemia signs and symptoms may vary depending on the cause of the condition. These may include fatigue, weakness, pale or yellowish skin, irregular heartbeats, breathlessness, dizziness, chest pain, cold hands and feet, and headache.

Causes of anemia: Anemia occurs when your body doesn t have enough red blood cells. This can happen if: 

Your body doesn t make enough red blood cells: The bone marrow is essential for the creation of red blood cells. A number of diseases can affect the bone marrow, including leukemia, where too many abnormal white blood cells are produced. This disrupts normal production of red blood cells.
Bleeding causes you to lose red blood cells more quickly than they can be replaced: Iron deficient anemia is the most common type of anemia which often falls into this category. It is caused by a shortage of iron, which most often results due to blood loss. Blood loss can be acute and rapid or chronic. Rapid blood loss can happen at the time of surgery, childbirth, trauma, or a ruptured blood vessel. 
Your body destroys red blood cells: Red blood cells have a lifespan of 120 days in the bloodstream but they can be destroyed or removed beforehand. In one type of anemia, the body s immune system mistakenly identifies its own red blood cells as a foreign substance and attacks them. Excessive red blood cell breakdown can also occur due to infections, the use of certain drugs, snake or spider venom, severe hypertension, and in the case of clotting disorders.
Treatment of anemia: The treatment of anemia varies greatly. First, the underlying cause of anemia needs to be identified and corrected. Most of the times, iron supplements will be needed to correct iron deficiency. In severe anemia, blood transfusions may be necessary. Vitamin B12 injections are necessary in some cases who are suffering from a specific type of anemia.

Prevention of anemia: Many types of anemia can t be prevented. But iron deficient anemia and vitamin deficient anemia can be avoided by having a diet that includes a variety of vitamins and nutrients, including iron, folate, vitamin B12, and vitamin C.

Anemia - What Causes It?

The lack of red blood cells or hemoglobin in the blood is termed as anemia. You may also be diagnosed as anemic is your red blood cells do not have a high enough hemoglobin count. Since hemoglobin is responsible for the amount of oxygen in our blood, being anemic results in a decreased flow of oxygen in the blood. 

There are 5 different types of anemia. These are:
1. Iron deficiency anemia: when the iron levels of the blood are lower than normal. 
2. Sickle cell anemia: when the red blood cells are shaped like a'sickle' and hence more fragile. This is an inherited condition. 
3. Thalassemia - when the body does not produce enough red blood cells or hemoglobin. This is also an inherited condition.
4. Megaloblastic anemia - when the blood does not have enough vitamin b12 and hence cannot transport hemoglobin through the body. 
5. Hemolytic anemia - when the red blood cells are rapidly removed from the blood due to an infection, medication or disease. 

Lack of oxygen can have a serious effect on the organs of the body. Hence the symptoms of anemia are also the effects of the disease. 
Some of these are: 
Lack of energy
Fatigue
Dizziness
Chest pain
Difficulty breathing
Abnormal heartbeat
Reduced attention span
Numbness of the hands and feet. 

Anemia can also lead to a number of major health problems such as:
1. Heart disease: anemia is directly linked to heart disease. When the blood carries less oxygen, the heart needs to work harder to pump it to the rest of the body. Thus, people who are anemic are at a higher risk of having a heart attack than a non anemic person. Anemia can also lead to arrhythmia or a condition where the person suffers from an irregular heartbeat. 

2. Pregnancy complications: one of the first and most vital supplements prescribed to a pregnant woman is iron. Iron is essential not only for a healthy baby, but also for your own body. Anemia caused by a lack of iron can result in premature birth and a number of other complications at the time of pregnancy. 

3. Increased risk of infections: lack of oxygen in the blood can affect your immune system by lowering its ability to fight infections. This makes the body vulnerable to diseases. 

4. Cognitive damage: anemia in children can result in a greatly reduced attention span and weaken their memory. Sometimes, even when treated, this can result in permanent scarring and reduced iq levels. 

Fighting anemia is not hard. Consult your doctor instantly if you recognize any of its symptoms and start eating food rich in iron to fight this disease.

Anaemia and How It Can Affect Your Health

A healthy kidney produces a hormone known as the erythropoietin. The latter assists the bone marrow to produce an adequate amount of RBC that carries oxygen to every nook and corner of the body. A damaged kidney results in less RBC production, thereby, creating a condition known as anemia. The hemoglobin count in the blood reduces significantly in this condition.

Anemia is characterized by shortness of breath, weakness and tiredness. It can affect sleep and a loss of appetite. A patient suffering from anemia reports of frequent headaches and a faster heart rate. These symptoms also surface when a person suffers from chronic kidney diseases (CKD). The condition gets worse as the disease progresses.

Treating anemia:
A patient suffering from anemia should be treated on time as there are many pitfalls of a lower hemoglobin level. The treatment will give instant relief from other symptoms that might have arrived with CKD. Doctors frequently prescribe Erythropoiesis Stimulating Agent (ESA) for patients suffering from CKD and suffering from anemia due to the shortage of erythropoietin. ESAs can be injected through an injection or intravenously. These injections stimulate the bone marrow to produce more RBCs. However, studies have revealed that ESAs increase the chance of strokes, heart attacks and blood clots. Furthermore, they aggravate tumor growth and shorten life expectancy for cancer patients. People undergoing ESA treatment should have periodic check-ups to ensure that the hemoglobin count is normal and under control.

Iron
Iron count in the body has an important role in treating patients suffering from anemia and CKD. In case the level of iron is too low in the body, ESAs fail to improve the condition of an anemic patient. The ferritin count of a patient should be in the range of 100-800 mcg/L. One more test known as TSAT reveals the number of iron required to produce RBCs in the body. In case the iron count is less, doctors often suggest iron pills to bring the count to a more accepted level.

Other causes
There could be other reasons for anemia as well. A doctor might further investigate the level of B12 and folic acid present in the body. Even an inflammatory condition can lead to anemia. A decreased count of any of the above-mentioned ingredients can cause anemia to a patient suffering from EKD.

Food items necessary to improve the condition
A healthy diet helps in improving the condition of an anemic patient. Iron deficiency is best addressed by fish and beef. Food rich in vitamin C helps the body to absorb more iron in the body. Certain food items that block the entry of iron in the body include tea, milk, albumen (egg white) etc. Therefore, you should be strictly avoid these items from your diet.

Kidney Disease - How It Is Related With Anaemia?

Thalassemia is a genetic (which is passed from parents to children through genes) blood disorder. People with Thalassemia disease are not able to make enough hemoglobin, which causes severe anemia. Hemoglobin is found in red blood cells and carries oxygen to all parts of the body. When there is not enough hemoglobin in the red blood cells, oxygen cannot get to all parts of the body. Organs then become starved for oxygen and are unable to function properly.

Symptoms

The symptoms depend on the type of thalassemia:

Thalassemia Minor: Thalassemia minor usually doesn t cause any symptoms. If it does, it causes minor anemia.
Beta-thalassemia: Beta-thalassemia comes in two serious types, which are thalassemia major, or Cooley s anemia, and thalassemia intermedia. The symptoms of thalassemia major generally appear before a child s second birthday. The severe anemia related to this condition can be life-threatening. Other signs and symptoms include:
fussiness
paleness
frequent infections
a poor appetite
failure to thrive
jaundice, which is a yellowing of the skin or the whites of the eyes
enlarged organs
This form of thalassemia is usually so severe that it requires regular blood transfusions.

Alpha-thalassemia: Alpha-thalassemia also has two serious types, which are hemoglobin H disease and hydrops fetalis. Hemoglobin H disease can cause bone issues. The cheeks, forehead, and jaw may all overgrow. Hemoglobin H disease can cause:
jaundice, which is a yellowing of the skin or the whites of the eyes
an extremely enlarged spleen
malnourishment
Hydrops fetalis is an extremely severe form of thalassemia. It occurs before birth. Most individuals with this condition are either stillborn or die shortly after being born.

Thalassemia - Symptoms Based on Types of Thalassemia 

Iron deficiency anemia is a type of anemia, which occurs due to deficiency of iron. Iron is the main component of hemoglobin. So, a decrease in the hemoglobin level results in iron deficiency anemia.
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What are the Signs and Symptoms of Iron Deficiency Anemia?

Signs and symptoms appear when anemia is moderate to severe. In the mild stage, iron deficiency anemia often goes unnoticed. The signs and symptoms of iron deficiency anemia are:

Extreme fatigue (weakness)
Pale skin and brittle nails
Reduced  appetite
Headache, dizziness, or lightheadedness
Cold hands and feet with tingling numbness
Chest pain, palpitations, or shortness of breath
Inflammation or soreness of the tongue
Unusual cravings for indigestible substances, such as ice, dirt, or starch. 
What are the Causes of Iron Deficiency Anemia? 

Inadequate iron intake: Your body gets iron from the food you eat. If you consume too little iron, then your body may become iron deficient. Hence, resulting in anemia.
Inability to absorb iron: Iron is absorbed into your bloodstream from the food in your small intestine. In conditions like an intestinal disorder, this absorption of iron is hampered which results in iron deficiency anemia. Also, when your small intestine is bypassed or removed surgically, absorption of iron is hampered.
Blood loss: Red blood cells in your blood contain iron, and if the blood loss is severe, you can end up having iron deficiency. Conditions, such as bleeding hemorrhoids, colorectal cancer, and heavy menstruation can result in iron deficiency anemia.
Pregnancy and lactation: During pregnancy and lactation period, the iron requirement of the mother is more, and when it is unfulfilled, she may end up having iron deficiency anemia. 
Which Group is at Risk? 

Vegetarians
Women
Infants and children 
Frequent blood donors
How is it Diagnosed?

Diagnosis is made with the help of: 

Patient s history  
Blood tests, such as CBC and serum ferritin
Some additional tests, such as colonoscopy, endoscopy, and sonography to diagnose the underlying cause
Treatment

Treating the underlying cause is the primary step. 

Severe cases: When the iron level is too low, blood transfusion and even intravenous iron is given
Mild to Moderate Cases: Iron and vitamin C supplements are given in mild and moderate cases of iron deficiency anemia.
Can you Prevent Iron Deficiency Anemia?

Yes. You can prevent iron deficiency anemia by including iron-rich foods in your diet, such as:

Dark green leafy vegetables, such as spinach, peas, and beans
Dry fruits, such as raisins and apricots
Red meat, pork and poultry, and seafoodIron-fortified cereals, bread, and pasta
Include vitamin C-rich foods in your diet to enhance iron absorption. Vitamin C is found in Grapefruit, oranges, strawberries, lemons, and melonsLeafy greens, broccoli, peppers, and tomatoes

Iron Deficiency - What Are The Possible Signs And Symptoms?

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