Menstrual Cycle

[Primarygun]

When does menstruation occur in a menstrual cycle which lasts for 22 days?

14 days after the previous one, or at the middle.

Thanks

[mattbimbo]

surely menstruation occurs every 22 days?

 

most commonly in text books, ovulation occurs in the 2nd quarter of the cycle, but it is all relative.

[Primarygun]

It normally lasts for 28 days.

Does ovulation really occur at the middle of the menstrual cycle or just 14 before the end of a menstrual cycle?

Which is more persuasive?

[chuinhen]

It depends on each individual .

That is the concentration of each hormone that involve in the mestruation .

 

Ovulation is promoted by Luteinising hormone (LH) .

 

LH secretion in anterior pituitary gland is promoted by high levels of oestrogen .

 

Oestrogen secretion is carried out by Follicles in the Ovary .

 

Lastly , Follicle stimulate hormone is the hormone that stimulates the follicle to release oestrogen.

 

THUS , the whole process is chain reaction .

 

Factor like stress can alters the amount of secretion and hence disturbed the whole cycle .