What is anaemia ?
By ashwinee77
@ashwinee77 (784)
India
16 responses
@bhavesh80 (381)
• India
12 Dec 06
According to me, anaemia is a dieases caused due to decrease in RBC. It is due to loss of iron from body. This can cause lack of oxygen in the body.
@kataztrophy (1836)
• United States
12 Dec 06
A decrease in the number of red blood cells or the total level of haemoglobin (see below). This makes it harder for the blood to get oxygen to the rest of the body, causing symptoms such as weakness, tiredness or shortness of breath. Anaemia in myeloma can be caused by the myeloma cells in the bone marrow interfering with red blood cell production, or as a side effect of chemotherapy.
@huanghaozi (1472)
• Egypt
9 Feb 07
Anaemia is a condition which occurs when you have an abnormally low amount of red blood cells. Red blood cells contain haemoglobin, a red pigment which gives blood its colour. The job of haemoglobin is to carry oxygen around the body. When red blood cells and therefore haemoglobin are low the blood fails to supply the body's tissues with sufficient amounts of oxygen. As your lungs and heart will then have to work harder to get oxygen into the blood, symptoms of anaemia, such as difficulty in breathing will begin to develop.
Anaemia mainly affects women during pregnancy or women who suffer with heavy periods.
@mvsrao (4365)
• India
12 Dec 06
from wikipedia :
Anaemia , from the Greek meaning "without
blood", refers to a deficiency of red
blood cells (RBCs) and/or hemoglobin.
This results in a reduced ability of
blood to transfer oxygen to the tissues,
causing hypoxia; since all human cells
depend on oxygen for survival, varying
degrees of anemia can have a wide range
of clinical consequences.
Hemoglobin (the oxygen-carrying protein
in the red blood cells) has to be present
to ensure adequate oxygenation of all
body tissues and organs.
The three main classes of anaemia
include excessive blood loss (acutely
such as a hemorrhage or chronically
through low-volume loss), excessive
blood cell destruction (hemolysis) or
deficient red blood cell production
(ineffective hematopoiesis).
In menstruating women, dietary iron
deficiency is a common cause of
deficient red blood cell production.
see more details here :
http://en.wikipedia.org/wiki/Anaemia
@starsun (316)
• India
12 Dec 06
Anaemia is a deficiency of red blood cells, which can lead to a lack of oxygen-carrying ability, causing unusual tiredness and other symptoms. The deficiency occurs either through the reduced production or an increased loss of red blood cells. These cells are manufactured in the bone marrow and have a life expectancy of approximately four months. To produce red blood cells, the body needs (among other things) iron, vitamin B12 and folic acid. If there is a lack of one or more of these ingredients anaemia will develop.
@yueliu (1619)
• China
9 Feb 07
A morbid condition in which the blood is deficient in quality or in quantity.(AmE anemia) a medical condition in which sb has too few red cells in their blood, making them look pale and feel weak\r\n also anemia AmE a medical condition in which there are too few red cells in your blood Too few red blood cells in the bloodstream, resulting in insufficient oxygen to tissues and organs.
Origin: Gr. Haima = blood
@shadowauror (1515)
• India
12 Dec 06
Anemia (AmE) or anaemia (BrE), from the Greek (??a?µ?a) meaning "without blood", refers to a deficiency of red blood cells (RBCs) and/or hemoglobin. This results in a reduced ability of blood to transfer oxygen to the tissues, causing hypoxia; since all human cells depend on oxygen for survival, varying degrees of anemia can have a wide range of clinical consequences. Hemoglobin (the oxygen-carrying protein in the red blood cells) has to be present to ensure adequate oxygenation of all body tissues and organs.
The three main classes of anemia include excessive blood loss (acutely such as a hemorrhage or chronically through low-volume loss), excessive blood cell destruction (hemolysis) or deficient red blood cell production (ineffective hematopoiesis). In menstruating women, dietary iron deficiency is a common cause of deficient red blood cell production
@nehakalley4 (1918)
• United States
31 Jan 07
Anaemia is a deficiency of red blood cells, which can lead to a lack of oxygen-carrying ability, causing unusual tiredness and other symptoms.
The deficiency occurs either through the reduced production or an increased loss of red blood cells. These cells are manufactured in the bone marrow and have a life expectancy of approximately four months.
To produce red blood cells, the body needs (among other things) iron, vitamin B12 and folic acid. If there is a lack of one or more of these ingredients anaemia will develop.
What causes iron deficiency?
Most cases of iron deficiency in children are caused by eating a poor diet containing little iron. In adults, however it is most commonly caused by losing blood faster than the body can remake it.
A lack of iron in the diet is common in vegetarians because the main general dietary source is red meat. Babies can develop iron deficiency, especially if they have been born prematurely. Their storage of iron is usually not completed until the final stages of pregnancy.
An increased need for iron arises when a large amount of cell divisions occur, such as during pregnancy, and during periods of rapid childhood growth.
Reduced absorption from the intestine of iron can be caused by diseases of the small intestine such as gluten intolerance (coeliac sprue) or Crohn's disease (inflammation of the intestine).
Always consult a doctor for unexplained iron deficiency. The cause could be small ruptures in the intestine due to cancer or polyps (small growths). Ulcers in the stomach and duodenum can also lead to iron deficiency anaemia. This loss of blood from the digestive tract may be so slight as to be undetected on its own.
Iron deficiency is more frequent in women who smoke, eat a diet low in iron and have heavy periods.
What are the symptoms of anaemia due to iron deficiency?
If a person is otherwise healthy, symptoms seldom appear before the haemoglobin (red pigment) drops below 10g/dl.
The first symptoms will be tiredness and palpitations (awareness of the heartbeat).
Shortness of breath and dizziness is common.
If the anaemia is severe, angina (chest pain), headache and leg pains (intermittent claudication) can occur.
Besides the general symptoms of anaemia there will be unique symptoms in pronounced and long-term cases of iron deficiency. These will be especially noticeable in the tongue and throat and include:
a burning sensation in the tongue.
dryness in the mouth and throat.
sores at the corners of the mouth.
an altered sense of touch.
a smooth tongue.
in extreme cases the nails can become brittle and spoon shaped with vertical stripes and a tendency to fray.
or a 'pica' can arise - an insatiable craving for a specific food, eg liquorice.
brittle hair.
difficulty in swallowing.
Possible deterioration
Shortness of breath, palpitation and angina.
Iron deficiency can in rare cases cause permanent changes to the mucosa (soft lining) in the throat (Plummer-Vinson syndrome). This condition is a preliminary stage to cancer.
How does a doctor diagnose anaemia due to iron deficiency?
First, the doctor must be sure that the patient suffers from anaemia and will probably request a blood test. With the result of the blood test, an analysis of the red blood cells will usually be included. In cases of pronounced iron deficiency the red blood cells will be small and pale.
An iron deficiency can be identified by techniques that examine the proteins involved in the storage and transport of iron through the body (ferritin and transferrin).
What can the doctor do to treat anaemia due to iron deficiency?
Examine the patient and prescribe appropriate treatment to deal with the causes of the illness.
Prescribe an iron supplement.
Medicines
Iron preparations. Iron tablets will rapidly reverse anaemia if the underlying cause of blood loss has been treated. The tablets can irritate the stomach and should be taken after food if this is the case. Iron tablets may colour the stools black and may cause constipation or sometimes diarrhoea. Very occasionally there may be a need for intramuscular iron injections to be given instead of tablets, but this is far less common.
What can be done to avoid anaemia
Eating a varied diet.
Good sources of iron include liver, beef, wholemeal bread, cereals, eggs and dried fruit.
A doctor should always be consulted immediately if there is loss of blood in the stools or urine. Medical advice should also be sought about persistently heavy periods.
A woman who is pregnant or planning to become pregnant, should talk to her doctor about iron supplements.
@sureshmoe (974)
• India
13 Dec 06
It is a disease related to blood. I think it is caused by the deficiency of iron content....
@vivek6831 (211)
• India
1 Feb 07
The three main classes of anemia include excessive blood loss (acutely such as a hemorrhage or chronically through low-volume loss), excessive blood cell destruction (hemolysis) or deficient red blood cell production (ineffective hematopoiesis). In menstruating women, dietary iron deficiency is a common cause of deficient red blood cell production.
@raveena (1353)
• India
1 Feb 07
Looks like you have already got lot of answers pertaining to your question but thought of adding one more. Hope it helps.
Blood is composed of three types of cells (red blood cells, white blood cells, and platelets) that circulate throughout the body. Red blood cells contain hemoglobin (Hb), a red, iron-rich protein that carries oxygen from the lungs to all of the body's muscles and organs. Oxygen provides the energy the body needs for all of its normal activities.
Anemia (ah-NEE-mee-ah) is a medical condition that occurs when a person does not have enough red blood cells. Red blood cells are important because they contain hemoglobin, a protein that carries oxygen from the lungs to the body's muscles and organs. The body requires oxygen for energy. Therefore, when you are anemic, you may feel tired mentally and physically.
When the number of red blood cells decreases, the heart works harder to deliver oxygen where it is needed throughout the body. Anemia may become worse if it is not treated.
@anjuscor (1266)
• India
26 Jan 07
Anemia is from the Greek (??a?µ?a) meaning "without blood", refers to a deficiency of red blood cells (RBCs) and/or hemoglobin. This results in a reduced ability of blood to transfer oxygen to the tissues, causing hypoxia; since all human cells depend on oxygen for survival, varying degrees of anemia can have a wide range of clinical consequences. Hemoglobin (the oxygen-carrying protein in the red blood cells) has to be present to ensure adequate oxygenation of all body tissues and organs.
The three main classes of anemia include excessive blood loss (acutely such as a hemorrhage or chronically through low-volume loss), excessive blood cell destruction (hemolysis) or deficient red blood cell production (ineffective hematopoiesis). In menstruating women, dietary iron deficiency is a common cause of deficient red blood cell production.
Anemia is the most common disorder of the blood. There are several kinds of anemia, produced by a variety of underlying causes. Anemia can be classified in a variety of ways, based on the morphology of RBCs, underlying etiologic mechanisms, and discernible clinical spectra, to mention a few.
There are two major approaches of classifying anemias, the "kinetic" approach which involves evaluating production, destruction and loss, and the "morphologic" approach which groups anemia by red blood cell size. The morphologic approach uses a quickly available and cheap lab test as its starting point (the MCV). On the other hand, focusing early on the question of production may allow the clinician more rapidly to expose cases where multiple causes of anemia coexist.
Anemia goes undetected in many people, and symptoms can be vague. Most commonly, people with anemia report a feeling of weakness or fatigue, general malaise and sometimes a poor concentration. People with more severe anemia sometimes report shortness of breath. Very severe anemia prompts the body to compensate by increasing cardiac output, leading to palpitations and sweatiness, and to heart failure.
Pallor (pale skin, mucosal linings and nail beds) is often a useful diagnostic sign in moderate or severe anaemia, but it is not always apparent.
There are many different treatments for anemia, including increasing dietary intake of readily available iron and iron supplementation; the treatment is determined by the type of anemia that is diagnosed.
If an increase in dietary intake is prescribed, then additionally increasing one's intake of Vitamin C may aid in the body's ability to absorb iron.
In anemia of chronic disease, anemia associated with chemotherapy, or anemia associated with renal disease, some clinicians prescribe a recombinant protein version of erythropoietin, epoetin alfa, to stimulate red blood cell production.
In severe cases of anemia, a blood transfusion may be necessary.
@coolcager (496)
• Costa Rica
21 Dec 06
lack of red blood cells. or not enough red blood cells that support your body. you can feel this if sometimes you didnt eat for a while and you are feeling really dizzy and you are having a headache.

















