Do unborn babies urinate/defecate in the womb?

Answer 1

Urinate - yes. Defecate - no.

Urination in the womb is not only normal, but essential for the development of kidneys. Remember, even though this may sound "gross", urine is sterile (doesn't contain any bacteria). Babies "drink" amniotic fluid while in utero...their bodies process it and excrete it through the kidneys.

Babies will not defecate in the womb unless there is a problem. The first stool a baby has is called meconium. It's very thick and dark green/black. If they get overly stressed in the womb, they may defecate. This is very dangerous as it can clog up their lungs and prevent their lungs from functioning at birth (meconium aspiration).

Answer 2

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Do unborn babies urinate/defecate in the womb?

Answer 3

Yes babies uriante in the womb and it is not a problem as it is sterile, ideally they would not defecate in the womb as this can lead to what is called a meconium aspiration(meconium is the first BM that they have it is almost a tar color and occasionally babies swallow it)

Answer 4

That's two questions, so two answers. Number one: yes, and it's a good thing they do. Number two: yes, but you better hope they don't.

Fetal urination is normal. It's part of that "miracle of life" folderol the nature programs exalt just before they hit you with something you'd rather not know. Naturally, fetal urine isn't quite the same as yours or mine. It does contain urea, but much of the nitrogenous waste enters maternal circulation for mama to clean up. Fetal urine isn't yellow, either. Fetuses and newborns lack enzymes to convert bile pigments to urobilin, which colors the output of older children and adults.

Urine production begins late in the first trimester, about the same time the two-inch embryo becomes a fetus. In the second half of pregnancy, fetal urine is an important constituent of amniotic fluid. By the time the kid is about ready to pop out, he or she is passing roughly a liter a day. Where does it go? Seems kids learn the benefits of recycling early on--they swallow it. They'd better, too, lest polyhydramnios (a potentially dangerous buildup of fluid volume) result. When fetal urination is impaired, the opposite complication, oligohydramnios, usually occurs.

Fetal defecation isn't normal, but fetuses do accumulate a mass of greenish feces, called meconium, in their intestines. Unlike the adult version, meconium is sterile and odorless, though still pretty icky, and the sight of it in the newborn nursery starkly reminds a new parent--not infrequently dad, since mom at this point is often out of it--that his life has entered a dramatic new phase. (Nurses invariably offer to clean things up. Let 'em.) I know what you're thinking: there's nothing much to nosh on in there, so where's this stuff coming from? Various endogenous and swallowed sources: mucus, bile, intestinal epithelial cells, lanugo (fine body hairs that are normally shed before birth), and vernix caseosa (a lubricating sebaceous secretion of the skin).

Fetuses usually don't pass meconium until after birth, but doing so in the womb isn't rare. Around 12 percent of fetuses have meconium-stained amniotic fluid (MSAF), colored yellow or green by bile pigments in the meconium--an indication that junior couldn't wait. The more prolonged the pregnancy, the greater the risk. In postterm births (those occurring after 42 weeks), the rate of meconium staining is about a quarter to a half. Why is this a concern? Fetuses take amniotic fluid into their lungs, and in a minority of MSAF cases, passed meconium enters the airway before birth and afterward leads to respiratory symptoms collectively called meconium aspiration syndrome (MAS). MAS can be fatal, although the rate of deaths is falling in developed countries--in part due to better treatments, but mostly because labor is now more likely to be induced if pregnancy drags on.

What else are they doing in there for nine months without cable? Let's put it this way: fetuses manage to entertain themselves. For instance, in 1996 two doctors reported on their ultrasonic observation of a female fetus masturbating over a period of 20 minutes. Twenty minutes? Change the channel already, you pervs.

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Answer 5

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I'm watching the same thing... they're not actually breathing, they're making the movements, its a way for them to develop the diaphram

Answer 6

I've heard of this before. Yes
They also breathe in and drink fluids in the sack.
Mater of fact....there was a special on discovery a few nights ago
about this.

Answer 7

Further into prgnancy an unborn child will excrete tiny amounts of urine, this is due to it pratising the sucking technique and swallowing small amounts of the fluid that surrounds him/her.

Answer 8

They can defecate in the womb if your pregnancy is over due.

Answer 9

rhubarb is right. dont listen to anything anyone else has said. i'm 38 weeks pregnant and have read my fair share of pregnancy books and they all said what rhubarb said.

Answer 10

now don't quote this, so too speak, but I asked my girlfriend the same thing and she said that all waste gets deposited into the placenta. if it breaks during a pregnacy, the baby will die do to being posined by the materials inside it. She said that, not me. I'm just a dumb guy.