TIL it is dangerous to blow air into a pregnant women's vagina. The increased air pressure can pass beneath the fetal membranes and into the circulation causing a venous air embolism that can kill within minutes. pubmed.ncbi.nlm.nih.gov Submitted by reddit4485 t3_11oaar2 on March 11, 2023 at 4:08 AM in todayilearned No comments 0