GIRLS ONLY: Where does the blood of our period come from?

Question

explain, if u can, about the blood from our period, where does it come from, good/bad.. why this blood?

oh and also why does it have a smell??

i dont neccessarliy wanna know about the period cycle but WHERE IN the first place in our bodies does the blood come from

Answer 1

The blood comes from shedding the endometrium, which is the inside lining of the uterus. In the weeks leading up to your period, the endometrium is thickening and growing new blood vessels to prepare for a fertilized egg to implant. When a fertilized egg doesn't implant, ie. you don't become pregnant, the lining breaks down and the small blood vessels rupture. The tissue and blood is expelled vaginally during your period. It has an odor simply because it's a bodily fluid, and if you use sanitary napkins, the blood may collect for a few hours, causing a more noticeable scent.

Answer 2

Every month, a woman's uterus prepares for fertilization by creating a blood coating on the wall of the uterus. When fertilization does not occur, the body tells the uterus to shed the blood, causing you to have your period. Cramps during your period is just the uterus contracting, trying to rid your uterus of all the blood inside.
EDIT:
I copy/pasted this straight from the website listed under sources:
"In the days before ovulation, the hormone estrogen stimulates the uterus to build up its lining with extra blood and tissue, making the walls of the uterus thick and cushioned. This happens to prepare the uterus for pregnancy: If the egg reaches the uterus and is fertilized by a sperm cell, it attaches to the cushiony wall of the uterus, where it slowly develops into a baby. If the egg isn't fertilized, though — which is the case during most of a girl's monthly cycles — it doesn't attach to the wall of the uterus. When this happens, the uterus sheds the extra tissue lining. The blood, tissue, and unfertilized egg leave the uterus, going through the vagina on the way out of the body. This is a menstrual period."
There isn't much else to say other than that. If you want me to be even more technical, the blood specifically comes from branches of the uterine artery called arcuate arteries, which flow throughout the endometrium, and these branch even further into radial arteries, which branch to straight arteries and spiral arteries. All of these arteries directly provide the blood that is ultimately shed during menstruation.

Answer 3

A woman’s period - menstruation - is the part of a woman's menstrual cycle where the endometrium (lining of the uterus) is shed, resulting in the cyclic, physiologic monthly shedding of the endometrium, through the vagina, of blood and mucosal tissues from the non-pregnant uterus. That is to say, if the egg released at ovulation is not fertilized. This is under hormonal control and normally recurs, usually at approximately four-week intervals, in the absence of pregnancy, during the reproductive period (from puberty through to menopause) of the female of the human and a few species of primates. It is the culmination of the menstrual cycle. There should not be any smell accompanying menstruation. Menstrual odour happens when menstrual fluid comes into contact with air. When menstrual fluid is absorbed within the vagina, it is not exposed to the air, so there shouldn't be any odour. Using tampons or changing pads frequently usually takes care of the problem.
Hope this helps
Matador 89

Answer 4

Each month the lining of the uterus fills with blood to prepare for the implantation of the fertilized egg, a baby. When there is no implantation, the uterus sheds this lining, the blood, and waits for the next cycle. The blood smells because it has been in the uterus for almost a month so its old blood. This is mother nature, so its a good thing.

Answer 5

It comes from the egg that is released from the ovaries. I've often wondered myself why it smells when other blood doesn;t really smell, at least not as much. I don't kow why that is...maybe just the location.

Answer 6

Your period is the shedding of your Uterus, this is totally natural and required for the female body. Consider it a cleansing of your female organs. It is a good thing for your body but not such a fun experience for you.

Answer 7

the blood is ur uterine lining , when u have ur period u shed ur uterine lining and it comes out as blood, the smell probably has to with between ur legs being such a warm inclosed area

Answer 8

Uterus. It is the lining of the endometrium. It is essential to a growing baby. If the egg is not fertilized then the lining sheds and a new one grows.

Answer 9

The blood comes from the vagina, when eggs are ready to be released. ONE egg that is. And it has that smell, simply because it's BLOOD. And because it's between your legs, the warmth must have something to do with it. Not sure though.