Some one can list me the factors inhibiting lactation???

Lactation has to do with the hormones. But so many things can affect the hormones, like diet, how often the baby nurses, and your milk supply could be low if you're not drinking enough water. Also, if you told your doctor you didn't plan to feed, and he gave you an injection of hormones to dry up your milk supply, then you later changed your mind, that could be the cause as well.