FSH (Follicle stimulating hormone) and LH (Lutineizing Hormone) are usually attributed as female only hormones. But in fact they are just as present in boys as girls.
The two hormones are Gonadotropins, which means that they take action on the gonads (The primary reproductive organs) and they are both released, as you probably know, by the pituitary gland in the brain. A common misconception is that the pituitary gland is the starting point for all hormone secretion. When in fact its in the middle – a respondant: it is triggered by a hormone called GnRH, standing for gonadotropin releasing hormone, which is secreted by the Hypothalamus, which is just above the pituitary gland.
Anyway GnRH is secreted within the brain`s of both boys and girls, and so consequently FSH and LH are secreted by the pituitary in both sexes – but they have very different affects. In girls FSH and LH are crucial for maintaining and managing the menstrual cycle. However in boys FSH is the hormone which triggers the testes to produce sperm cells, whilst LH causes testosterone to be made and secreted by the testes. Testosterone is the hormone that causes facial and bodily hair growth and muscular development, as well as accounting for male sexuality. But it does not actually cause sperm production!
This is why men who are extremely masculine, can actually suffer from infertility, because although their levels of LH are high – their FSH levels may be low, causing sperm production not to be prevalent enough to achieve fertilization.
Just repeated my home FSH urine test as could not wait until Thursday, and this time it is negative. Am unsure what this means-does it just mean I have ovulated very late this month ? I will repeat it again on Thursday-luckily I have a pack of ten tests. I’ve been doing lots of research on FSH levels and their significance. I will post some useful links later.
I have just checked my FSH level using a home urine FSH test, and it is elevated.
I did it about a year ago and it was negative. Howver I am 45 years old and have been having some flushes, which I had put down to stress. Now I am wondering if it is my hormones changing.
The test instructions say to repeat the test in 7 days, and if this is elevated this is significant. I will let you know how I get on. I have put it in my diary for next week. The test was very easy to perform and the result appeared within minutes.
After getting this positive result I decided to research FSH levels and their significance
First thing I found out is it could just mean I’m ovulating-phew. FSH rises sharply to stimulate the ovaries to release an egg-hence Follicle Stimulating Hormone.
As I did not write down my LMP (last period) I do not know if this is the case , although it does seem ages ago and I thought I was pre-menstrual, as have been quite snappy !
Other possible causes I found are that my FSH levels may be elevated due to declining ovarian reserve (not many eggs left in my ovaries). In this scenario the FSH is elevated in an attempt to kick start the ovaries-in my case it could be flogging a dead horse. MY cycle has been fairly erratic recently which is why I stopped writing them down.
Click here for more information on home FSH tests or to buy