There is no direct relationship between low progesterone and smoking, but there may be indirect effects.
For pregnant women, if there is a low level of progesterone in the body, it is likely to cause vaginal bleeding, abdominal pain and other symptoms of pre-miscarriage. Low progesterone is related to hormonal disorders in the body and does not exclude the presence of fetal dysplasia.
Cigarettes also have more nicotine and tar and other components, women in pregnancy, if long-term smoking, may affect the ovarian function, and the ovary is the main organ of secretion of progesterone, so long-term smoking may affect the ovarian function, which in turn caused the luteinizing hormone secretion is insufficient, the symptoms of low progesterone.
It is recommended that women avoid smoking during pregnancy to avoid affecting the growth and development of the fetus. Regular checkups are also needed to understand the development of the fetus.