The blood in your uterus is in there for a while, so the longer it is in there, the more it darkens. There is nothing wrong or unhealthy about it.
The menstrual cycle starts with menstruation. The firswt day of your menstrual cycle is considered to be the first day of true bleeding during your menstrual phase.
The hormone-like chemicals responsible for menstrual cramps are called prostaglandins. These normally don't cause menstrual cramps, they are produced to cause the uterus to contract to push out menstrual flow, but in larger quantities they cause inflammation.
luteinizing hormone
The term menstrual cycle refers to your entire reproductive cycle, I think you mean menstruation or your period. Menstrual flow can be brown when it is light as it takes time for the blood to leave the body and it goes brown as it gets old, it also mixes with discharge which changes the colour too.
She is beginning her monthly period.
Menstrual cycle refers to your reproductive cycle, I think you mean menstruation or your period. Menstrual flow can be brown when your period is light, the blood takes time to leave the body so turns brown just like any other blood would as it gets old, and it mixes with discharge.
There is no cause.
Various things can happen to cause bleeding outside of the menstrual cycle. For example, it is possible for sex to cause bleeding.
Yes, a yeast infection can cause bad vaginal odour so add the stronger scent of menstruation and the fact that menstrual flow can further impact on vaginal flora then it can cause bad odour. However most of the time bad odour during menstruation is due to poor hygiene or using unhealthy menstrual products such as tampons or commercial menstrual pads (rather than menstrual cups, softcups, cloth menstrual pads, or organic menstrual pads).
It can mean two things:Your menstrual cycle is getting ready to beginYour menstrual cycle is ending
The 4 phases of menstrual cycle are Menstrual phase, Follicular phase, Ovulation phase and Luteal phase. Menstrual cycle day count starts on the first day of menstruation when blood begins to leak out of the vagina.
Your menstrual cycle starts by itself when it is ready to do so, as long as you're healthy it will start by itself. There's no reason for you to try to do something to start your menstrual cycle again.