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Taking loette pill, have started half way through the packet. Pack mentions withdrawal bleed on taking white tablets. Meaning?

okay so i got this loette pill right its a really low dose and it says to start in the pink shaded area when u have ur period then they have the white tablets theres sevens they are sugar tablets ? it says after u take the 21 tablets which i have only taken 7 tablets coz i started half way threw the packet it says u take 7 white tablets and u get a with drawel bleed what is a withdrawel bless ?
Asked On : Sun, 28 Oct 2012
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General & Family Physician 's  Response
Do you know how this pills act and how your menstrual cycle works?
There are mainly 4 Hormones which comes into act-
1. Oestrogen
2. progesterone
3. LH
4. FSH
During a normal cycle this 4 maintain a perfect balance.
First few days the Oestrogen maintain the endometrium but during the mid cycle there is sudden rise in FSH and LH which causes Ovulation. Then again oestrogen takes the control and progesteron also play a role. Then the level decrases and endometrium can not maintain itself thus menstruation occurs.

Now when you using this throughout the cycle you are suplementing oestrogen and progesterone from outside thus no LH & FSH surge- no ovulation. After 21st day the rest 7 tablets are nothing but iron tablets , so during this time no hormonal support from outside so similar situation arises like menstruation endometrium can not maintain itself. These occurs due to withdrawl of hormonal support thus this is called WITHDRAWL BLEEDING.
Hope you understand,
Have a good health.
Answered: Sun, 28 Oct 2012
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