Inducing or otherwise causing an abortion is regarded as a serious matter in the monastic rules followed by both Theravada and Vajrayana monks; monks and nuns must be expelled for assisting a woman in procuring an abortion.[4] Traditional sources do not recognize a distinction between early- and late-term abortion, but in Sri Lanka and Thailand the "moral stigma" associated with an abortion grows with the development of the fetus.[4] While traditional sources do not seem to be aware of the possibility of abortion as relevant to the health of the mother, modern Buddhist teachers from many traditions – and abortion laws in many Buddhist countries – recognize a threat to the life or physical health of the mother as an acceptable justification for abortion as a practical matter, though it may still be seen as a deed with negative moral or karmic consequences.[4]