What are the causes of a miscarriage?

Answer 1

Most miscarriages are caused by an abnormal development of the baby. Severe trauma or injury to the mother can also cause a miscarriage, usually due to some type of accident.

Answer 2

What causes a miscarriage?

Between 50 and 70 percent of first trimester miscarriages are thought to be random events caused by chromosomal abnormalities in the fertilized egg. Most often, this means that the egg or sperm had the wrong number of chromosomes, and as a result, the fertilized egg can't develop normally.

In other cases, a miscarriage is caused by problems that occur during the delicate process of early development — for example, when an egg doesn't implant properly in the uterus or an embryo has structural defects that don't allow it to continue developing. Since most healthcare practitioners won't do a full-scale workup after a single miscarriage, it's usually impossible to tell why the pregnancy was lost. And even when a detailed evaluation is performed — say after you've had two or three consecutive miscarriages — the cause still remains unknown in about half of cases.

When the fertilized egg has chromosomal problems, you may end up with what's sometimes called a blighted ovum (now usually referred to in medical circles as an early pregnancy failure). In this case, the fertilized egg implants in the uterus and the placenta and gestational sac begin to develop, but the resulting embryo either stops developing very early or doesn't form at all. Because the placenta begins to secrete hormones, you'll get a positive pregnancy test and may have early pregnancy symptoms, but an ultrasound will show an empty gestational sac. In other cases, the embryo does develop for a little while but has abnormalities that make survival impossible, and development stops before the heart starts beating.

Once your baby has a heartbeat — usually visible on ultrasound at around 6 weeks — your odds of having a miscarriage drop significantly.

Answer 3

Most of the times it is caused be unknown factors. There is nothing a mother can do to cause a miscarriage. (This doesn't mean she can go out and abuse her health) Most doctors will tell you that if it's going to happen it will and there isn't anything you can do to prevent it from happening. There are a few circumstances that can cause it but can be out of the control of the mother as well such as a car accident. But many times it's just because the body is rejecting the fetus do to some unknown circumstance that may have had a problem with the fetus or incomplete implantation etc.. Where the baby wouldn't be able to survive on its own. Now every situation is different and there is no way you can generalize. It's just one of those very sad unfortunate things that happens.

Answer 4

what I have heard is that when a miscarriage occures the baby would not be able to survive on the outside or there was something genecticly wrong.

Answer 5

there are alot of causes, but a miscarrage mainly happens when the fetus will not properly survive in the world. This means that the baby would not be a healthy baby. or even be able to survive on their own. This is gods way of helping sort out the less perfect babys.

Answer 6

A baby that is not developing properly will cause a miscarriage.

Answer 7

an overgrowth of a bacteria called ureaplasma can cause a miscarriage, a lot of doctors dont test for this so you may have to ask.

Answer 8

it just depends. sometimes its alcohol or drugs even sometimes smoking cigarettes. it can be a weak cervix or stress. all my miscarries were due to either my cervix or stress. i'm guessing stress i was with a guy who treated me worse than a pile of crap. now that him and i have been split up over a year and i started talking to a different guy i became pregnant at the end of may and still am. i'm having minor complications but nothing too serious. so i figure it was the stress.

Answer 9

There can be numerous possibilities but the most common is blighted ovum. This means the egg was fertilized but did not go any farther. If a woman has repeated ones then they can do testing, sometimes it is lack of progesterone so they can give you injections to keep the level stable.

Answer 10

It can be caused by a blood clot in the umblical cord.