Anemia (or anaemia) is a medical condition which generally occurs in a human body because of the lack of required healthy red blood cells (RBCs) or hemoglobin in the blood. Diagnosis of anemia is done through a blood test, a man is anemic when his hemoglobin level is less than 13.5 gram/100 ml and a woman is anemic when her hemoglobin level is less than 12.0 gram/100 ml.

Risk factors: People suffering from long-term or chronic diseases such as cancer are more susceptible of developing anemia. Hemoglobin is the salient constituent of red blood cells and is an iron rich protein. It provides the red color to the blood and binds oxygen. Red blood cells carry this oxygen to all the vital tissues and organs of the body. Due to lack of appropriate amount of red blood cells, the amount of blood required in a body to function normally is also low. One of the most prominent causes of occurrence of anemia is the deficiency of required amount of nutritional iron, vitamin B-12, and folate in the body. This iron is needed for the formation of hemoglobin. Apart from these causes, the other causes of anemia comprise of the following:

Loss of blood
Insufficient production of red blood cells (inadequate intake of iron, vitamin B-12)
Fast rate of destruction of red blood cells (disorders of liver and hemorrhage)
Diagnosis: It is relatively easy to detect an anemic person. The symptoms of anemia include pale appearance, complaint of cold, giddiness, unsteadiness, laziness, particularly when the person is in action or is standing up. Sometimes people suffering from anemia crave for eating clay, ice, or even dirt. Also, there are complains of exhaustion along with issues of constipation and concentration. Other indications of anemia are brittle nails, gasps for breath even in mild activities, and pain in the chest. Since the level of oxygen in the blood is low, there could be even scope of a heart attack.

A person suffering from anemia is usually diagnosed on the basis of a complete blood count. The blood test brings out if serum folate levels are quite low. In case the anemia is severe, sometimes doctors take the help of erythropoietin injections so as to foster the production of red blood cells in the bone marrow. In case there is bleeding or if the level of hemoglobin is low, it might become essential to carry out blood transfusion.

Treatment: Anemia is straightforward to diagnose and treat, but at the same time could prove to be deadly if it is left undiagnosed. Proper heed should be paid to the intake of adequate and required food which is rich in vitamins and minerals, dietary iron, folic acid, including other vitamins and minerals.

Anemia- How Does It Affect a Person's Health?

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?

What do we mean by the term Anemia?

It is described as a decrease in the total number of red blood cells, or hemoglobin in the blood, or a decreased oxygen-carrying capacity of blood.

How to know if an individual has Anemia?

An individual with anemia may show one or more of the following signs or symptoms:
Shortness of breath, chest pain, and headache are especially seen with exercise as the oxygen supply decreases
Difficulty in concentration which is mostly seen in children
Easy tiredness, fatigue, and loss of energy
Dizziness because of low blood volume leading to hypotension
Hair loss especially while combing, washing hair. Also, hair becomes brittle and dry due to anemiaInsomnia (lack of sleep)
Cramps in legs especially calf muscle 
Rapid heartbeat with exercise as the demand for oxygen increases during exercise, so your heart beats faster than usual
Craving for indigestible substances, such as pica, paper, mud, ice, dirt, etc.
Koilonychia (spoon-shaped nails or upward curvature of the nails)
Soreness and cracks at the corners of the mouth
Very heavy menstrual periods or irregular bleeding because of low hemoglobin count
Pale skin is especially seen over the palms of your hands and under your nail beds. Also, the conjunctiva looks pale
Anemia due to Deficiency of Vitamin B12 Dementia (loss of memory)
Tingling sensation in the hands or feet
Loss of the sense of touch
Difficulty in walking
Stiffness in the arms and legs
Delayed growth and development in children
Swelling of the hands and feet
Episodes of severe pain in the joints, abdomen, and limbs as the red blood cells obstruct capillaries
Anemia by Chronic Red Blood Cell Destruction/Hemolytic anemia

Jaundice (yellowish or greenish pigmentation of skin and sclera of the eyes)
Brown or red colored urine due to the destruction of red blood cells
Fever due to the destruction of red blood cells
Small bruises under the skin
Abdominal pain because of enlargement of the spleen and liver
Black stools due to the destruction of the red blood cells
Anemia Caused by Chronic Lead Poisoning
Level of lead in blood is higher than 50  g/dLA blue-black line is seen on the gums. It is also known as a lead line
Abdominal pain
Constipation
Vomiting
Investigations 

Complete blood count: This test will help an individual know the percentage of hemoglobin in blood as well as red blood cell count. Also, mean cell volume (MCV) is used to categorize anemia.
Serum Ferritin Test: Ferritin levels below 15 20 micrograms/L in a person confirms iron-deficiency anemia.
Total Iron-Binding Capacity: It measures the blood's capacity to bind iron with transferrin.

How Can Anaemia Be Diagnosed?

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?

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 

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?

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