How would the Rh factor cause problems with pregnancies?
922913
Most of the times it does not cause problems.  It only becomes a problem when the mother is missing the Rh factor in her blood and the father of the child is Rh positive.  Even then it is only a problem after the first child is born.  The process is called Rh hemolytic disease of the newborn.  Essentially the mother will develop an immune response to any subsequent baby that is also Rh positive, if she is exposed to any of the Rh factors from her first Rh positive baby.  This used to be very common.  Now there is an antenatal (after birth) treatment of antibodies given to the mothers so she won't react to her subsequent babies.  To get a full description and explanation go to wikipedia.
204674
Well, I asked a similar question, and the helpful people who answered said that since stress isn't good for a baby, your body will prevent you from getting a period because it doesn't want you pregnant if you're stressed.  It can also be environment changes, horomones, etc.  Just relax, and if you want, go see your doctor/gynacologist (sp?).
144721
If you've had a tubal ligation (the correct technical term) that stops the eggs from being released into the uterus. The uterus reacts to your hormones fluctuating monthly, preparing for pregnancy, then when nothing happes, shedding the excess lining. Tubal ligation doesn't interfere with the monthly hormone shift - it is a mechanical barrier towards pregnancy prevention.
188235
It shouldn't cause a problem as long as you stop taking it as soon as you find out you are pregnant.  I was a birth control accident baby and oddly enough my first son was one too.  We are both fine as far as I can tell, and when I told my OB-GYN, they weren't that concerned because I hadn't been taking the pill that long while I was pregnant.
196220
They have to check it because if you are given the wrong type of blood and you are RH negative, then the antibodies in your blood will react against each other and create an attack on your body. I know I'm RH negative and have had to get Rhogam shot with every pregnancy
963681
it could be caused my the extra iron they put in pre-natal vitamins, but call your doc, not worth the risk.
750588
Rh incompatability is a condition that mostly occurs in the setting of a pregnant woman who has Rh NEGATIVE blood group.\n\nIf she is carrying a foetus that is Rh POSITIVE, it is possible that when some foetal blood enters her circulation (usually any time there is vaginal bleeding there is a possibility of placental bleeding and the possibility that foetal cells enter the mother) she can detect them as foreign cells and develop antibodies against them.\n\nThese antibodies can cross the placenta and then can affect the baby's blood (causes the blood cells to pop - haemolysis).\n\nThe treatment for this is to give the mother a dose of these antibodies as soon as there is a chance of foetal blood cells entering the mother's circulation (within 72hrs of this).\n\nSee the wiki pages.
356263
Um, if that doesn't happen you cannot have a child. But otherwise, it wouldn't necessarily effect the health of a woman. Some people are infertile, but it isn't harmful to their physical health.
841427
A blood test can usually detect early pregnancies.
1140357
theres a blood clot in the placenta. this might prevent some nutrients getting to the baby. keep an eye on this and visit your doc regularly.
251359
Rh factor is a very important factor in pregancy.  Our red blood cell is covered with antigen.  For example:  if your blood type is AB, you have antigen A, and antigen B on your red blood cells but you don't make antibodies *substance that bind to antigen* against A and B because if you do, you literally destroy your Reb Blood Cell.  Rh Factor functions the same way.  Rh factor is basically protein on the cell surface.  If you have this protein on your RBC surface, you are considered as Rh+, but if you don't have this protein on your RBC surface, you are Rh-.  When Rh- blood is introduced into Rh+ blood *assuming this is the same blood type*, the  Rh- blood will see the protein on the cell surface of the Rh+ blood as foreign and will start making antibody to attack the Rh+ blood.  The result could be cell lysis etc.  Hence, it's important to know what kind of Rh factor the mother has because if the mother has Rh- and the baby is Rh+ *this could happen because the dad can be Rh+*, then when blood of the baby is transferred or crossed the placenta during laor, the mother will start develop antibody against Rh+.  The first pregnancy usually is fine, but when the woman is pregant with the second child, she definitely needs to be checked because fetus receives blood from the mother and if the monther blood contains antibody against the Rh+, red blood cell in the fetus is destroyed.  \n\nYou can read more about how to prevent unwanted antibodi production against Rh+ factor when the mother is Rh- factor in the following link.\n\nHope this helps
873271
It's actually a misconception that there are 2 Rh factors, one positive and one negative.  It's not true.  You either have it or you don't, but you can't have a negative one.
515508
Stress has long been suspected as a possible cause of miscarriage, with several studies indicating an increased risk among women reporting high levels of emotional or physical turmoil in their early months of pregnancy or just before conception. But while a relationship has been noted, researchers didn't know exactly how a woman's stress could cause miscarriage. \n\nResearchers found stress hormones such as cortisol are raised in the bloodstream, suppressing the production of progesterone - a hormone which is crucial to the maintenance of a healthy pregnancy. \n\nIt was found that women who miscarried were more likely to have reported stress than women whose pregnancies continued. They were also more likely to have had lower progesterone and PIBF levels. \n\nResearchers are recognizing that there are two facets to the link between stress and miscarriage. One is that a stressful life can contribute to miscarriage. The other is that the stress of multiple miscarriages can make subsequent miscarriages more likely. The most recent study to back this theory, reported in the November 17, 2004 issue of New Scientist, concluded that stress releases a "cascade of hormones" that can lead to spontaneous abortion. It followed 864 pregnant women &3150; 55 of whom miscarried. Those who miscarried were more likely to have identified themselves as experiencing stress before or during pregnancy.
461135
you really can't prevent these things from happening.  a lot of it has to do with your genes and family history.  while there are some things that people believe will help (like taking vitamins and such), if it runs in your family, your chances of getting them are much higher.
430593
Anything is possible, but if the proper testing and blood work was done, it is highly unlikely. The body makes and releases certain hormones at specific times during a woman's cycle and when pregnancy is achieved, there are even more hormones that surge into the system. If they don't reach specific levels at the right time, it is highly unlikey that the body would be able to maintain the pregnancy. This would show up in blood work. Also, once those hormaones are present it takes a few months for them to return to pre-pregnancy levels, so you may still feel strange. An internal sonogram is another way they can check and is pretty specific. It is done by placing the sonogram probe at the vaginal opening and the uterus and ovaries are very visible. I saw my babies each week as they developed from the week of conception. I miscarried my first at seven weeks and it was only the size of a grain of rice. I have a picture of it from the six week exam and it is little bigger than a spot. I had to wait a few months before trying again to allow the hormones to come down, but with the next try I got my wonderful son. If you have misgivings about your doctor's diagnosis, you should see another doctor to ease your mind. Best wishes to you.
178301
hemolysis if gets severe, can cause death. one example is in fetus with + rh that is growing in the womb of a previously sensithized mother,transmission of antibody from mother to the fetus can cause a hemolysis that will make the baby anemic, with cardiac failure, mental retarded, ... or evan kill the fetus or baby if we dont do any intervention.
999341
The cause of most spontaneous abortions (miscarriages) is fetal death due to fetal genetic abnormalities, usually unrelated to the mother. Other possible causes for spontaneous abortion include infection, physical problems the mother may have, hormonal factors, immune responses, and serious systemic diseases of the mother (such as diabetes or thyroid problems).\n\nIt is estimated that up to 50% of all fertilized eggs die and are lost (aborted) spontaneously, usually before the woman knows she is pregnant. Among known pregnancies, the rate of spontaneous abortion is approximately 10% and usually occurs between the 7th and 12th weeks of pregnancy.\n\nThe risk for spontaneous abortion is higher in women over age 35, in women with systemic diseases such as diabetes or thyroid problems, and women with a history of three or more prior spontaneous abortions.