Pregnant women can use medical paraffin oil externally in moderation, but those with preeclampsia and abnormal placenta position are advised not to use it.
There is no clear clinical information or evidence to support that the use of medical paraffin oil in pregnant women will have adverse effects on the pregnant woman and the fetus.
Paraffin oil is a topical medication that is primarily topical in action, and is quite low in blood drug content, not enough to affect the fetus. Paraffin oils are generally safe for pregnant women and fetuses when used in routine doses.
Paraffin oil can be used as a lubricant and may be used in some pregnant women with severe constipation, but it is not a routine treatment for constipation.
For those with preeclampsia and abnormal placenta position, the use of lubricants may easily trigger contractions, resulting in miscarriage, abdominal pain, vaginal bleeding, placental abruption, etc., so try not to use them unless necessary.