Luteal phase defect (or deficiency) (lpd)
-- a condition that occurs when the
uterine lining does not develop adequately
because of inadequate progesterone
stimulation; or because of the inability
of the uterine lining to respond to
progesterone stimulation. Lpd may prevent
embryonic implantation or cause an early
miscarriage
the web site is a link to a glossary for
infertility terms...