To keep it simple, it is used daily also (globally for stimulating testosterone production in man and ovulation regulation in woman), so their is a system of regulation for theses hormones and others as they contribute to the general homeostasis of the body...the danger is mainly for LH in its deficiency.
Hello Ali. Great question, with a few possible contributing factors.
You might want to also check bound LH and LH receptor affinity, as well as free LH. Most hormones are fractionally bound to serum globulins until they are needed by the target cells.
Also, if LH is chronically low, this could lead to increased receptor expression in Leydig and ovarian cells. In this case, any LH secreted would be quickly bound to target cell receptors and only detectable in the blood for a very short time.
Similar problems exist in other areas of research such as serum antibody tests for infections. In chronic infections, most antibodies will be bound in Ag-Ab complexes and not detectable as free Ab in serum. Therefore serum tests often come back negative for people with active infections.
I believe insight to such phenomena will take your research to a new level of excellence. Best wishes for your success.