Are there any specific groups among which Hemophilia is particularly common too?
489455
Absolutely and very distinct groups as well.  Firstly, only females are carriers of the disease and only males can get the disease.  There are no females who actually have the disease itself.  None that are known to me at least.\n\nWhat this means is if your mother is a carrier of the abnormal gene which produces hemophilia, and you are her son, you will have the disease itself.  I say you will have it because the chances of her passing it onto you are so great that it is almost 100%.\n\nThe only other distinctive trait is that hemophilia is most common among Caucasian males, specifically white males as opposed to black males - no matter what their origin - African-American, Jamaican, etc.\n\nThe best example of what can happen and did happen just over twenty years ago in the United States:  A husband and wife had three sons and the mother was the carrier of the hemophilia gene.  All three sons were born with hemophilia.  This was when the medical community knew very little about the early stages of what we now know to be HIV, AIDS, etc.  All three sons had to have regular blood transfusions due to their hemophilia and unfortunately, all three received tainted blood over the course of several years.\n\nThe eldest son was the first in the family to die of AIDS, followed by the other two.  This was a big news story back then - you may wish to check the net for info on it - the eldest son was one of the main recipients of the first charities started for AIDS patients (by Elton John in particular) and his name was Ryan White.  This is no secret so I am not divulging information that is not already known by the medical community as well as other international sources.\n\nSo, you can see that in a way, parents who already know that the female partner is a carrier of the gene may be putting any children they have at risk by choosing to have children.  Sons will likely be born with the disease and daughters will likely be born as carriers of the disease.\n\nIt seems like a vicious circle but with education and careful consideration, a hemophiliac should be able to live a relatively normal life especially now that blood screening is done at least in most parts of the world.\n\nHowever, in some countries, the screening may not be as vigilant as in North America, so hemophiliacs in some parts of the world may still be at risk of getting HIV, AIDS and other disorders each time they receive a transfusion.\n\nThe reason why hemophiliacs need transfusions is that the disease causes them to bruise very easily and also bleed profusely if cut or scraped.  This occurs most often when the male is a younger person so this is a critical time in their lives.\n  \nSo far, hemophilia is not preventable or curable so once again, education and research are the key and perhaps some day, there may be a cure. \n\nI hope I have helped answer your question and provide some information as well.
189212
Yes.\n\nThis site talks about blood groups in cattle:\n\n"Eleven blood groups have been recognised in cattle - some are simple with only one antigen presented, whilst others are more complicated"\n\nWhat, you thought humans would be unique? =)
1186366
^&^&^&\n\n most peoples\neee haw
477790
Nope. A pos/neg and B pos/neg are the two most common blood types.\n\nAB pos/neg is the next most common (meaning one parent has A blood, and the other has B blood)\n\nO pos/neg is the rarest.
187065
This is probably not "all" of them, but it's a lot.  Hope this helps  :)
260890
where have you been looking?\n\nhttp://www.hemophilia.ca/en/2.1.2.php\n\nIts bee around for centuries but 1st medically identified about 200 yrs ago.
447010
Hemophilia is group of hereditary bleeding disorders of specific blood clotting factors. There are two main types of hemophilia: A and B.\n\nWhat causes Hemophilia?\n\nHemophilia is caused by an inherited sex-linked recessive trait. The defective gene is located on the X chromosome.\n\nThe severity of symptoms can vary with this disease, and the severe forms become apparent early on. Bleeding is the hallmark of the disease and typically occurs if an infant is circumcised. Additional bleeding manifestations make their appearance when the infant becomes mobile. Mild cases may go unnoticed until later in life when try occur in response to surgery or trauma. Internal bleeding may happen anywhere, and bleeding into joints is common. Risk factors are a family history of bleeding and being male.\n\nWhat are the Symptoms?\n\nSome of the symptoms are: bruising, spontaneous bleeding, bleeding into joints and associated pain and swelling, gastrointestinal tract and urinary tract hemorrhage, blood in the urine or stool, excessive and prolonged bleeding from cuts, tooth extraction, surgery bruises that are unusual in location or number, nosebleeds that won't stop, and painful or swollen joints\n\nHow is Hemophilia Diagnosed?\n\nDoctors diagnose hemophilia by performing a set of blood tests. Coagulation studies involving many tests are performed if the person tested is the first one in the family to have a bleeding disorder. Once the defect has been identified, other family members will need less testing to diagnose the disorder.\n\nMedical Complications?\n\nSome of the medical consequences from hemophilia are: Chronic joint deformities, Intracerebral hemorrhage is another possible complication.\n\nCan Hemophilia be Cured?\n\nCurrently, there is no cure for hemophilia. However, it can be managed with medications, such as: clotting factor replacement therapy.
830826
a lot, it is a very common thing
427028
The differences in human blood are due to the presence or absence of certain protein molecules called antigens and antibodies. The antigens are located on the surface of the red blood cells and the antibodies are in the blood plasma. Individuals have different types and combinations of these molecules. The blood group you belong to depends on what you have inherited from your parents.\n\nThere are more than 20 genetically determined blood group systems known today, but the AB0 and Rh systems are the most important ones used for blood transfusions. Not all blood groups are compatible with each other. Mixing incompatible blood groups leads to blood clumping or agglutination, which is dangerous for individuals.\n\nNobel Laureate Karl Landsteiner was involved in the discovery of both the AB0 and Rh blood groups.\n\nCheck the full text\n\nhttp://nobelprize.org/medicine/educational/landsteiner/readmore.html
240266
well, its not very common though; i would say abt 32% of Usa women have it and what causes it is their upbringing.\nso they are not to be blamed..good.
13809
Blood types are not evenly distributed throughout the human population. O+ is the most common, AB- is the rarest. There are also variations in blood-type distribution within human subpopulations. The figures given here are for people of European descent.\n\nType Frequency \nO+ 38% \nA+ 34% \nB+ 9% \nO- 7% \nA- 6% \nAB+ 3% \nB- 2% \nAB- 1%
938959
This is due to a defective X chromosome. As a man has only one he is more likely to be colour blind. Females have two X chromosomes so are much less likely to have the condition. Hemophilia where the blood does not clot works the same way.
809302
hemophilia federation india \n\na NGO\n\ngoodluck
575373
I believe it is the most common occurrence, preference aside.
519271
they are more common then people think.
558398
No. Maybe 40-50,000 at most. About the same number of people who are homicidal maniacs. There's a direct correlation because both are mental disorders.
88501
there are people with genetic disorders as stated, one is lupus but that is more toward the werewolf myth, the other is porphyria which is a hereditary stress brought on disease in which you are alergic to sunlight, the smell of garlic, and you crave something in other peoples blood because your blood doesnt create a required item.  another thing that led to this myth is the fact that people used to be burried alive when they were in comas, and when dug up they had moved in their graves, because they were suffocating, when staked squeals and what appeared to be fresh blood were seen and heard because of the air being released from the lungs and the people werent enbalmed back then\ni hope this helps