BMA has issued the advice in official guidelines over fears they might offend transgender people.
It advises that mums-to-be should be called ‘pregnant people’ instead of ‘expectant mothers’.
A 14-page booklet, called A Guide To Effective Communication: Inclusive Language In The Workplace, says: “A large majority of people that have been pregnant or have given birth identify as women.
“However, there are some intersex men and trans men who may get pregnant.
“We can include intersex men and trans men who may get pregnant by saying ‘pregnant people’ instead of ‘expectant mothers’.”
The guide also warns against using the terms “born man” or “born woman” in relation to trans people, as these phrases “are reductive and over-simplify a complex subject”.
A BMA spokesman said: “This is a guide for BMA staff and representatives aimed at promoting an inclusive workplace at the BMA. It is not workplace guidance for doctors which is clear from the fact it does not refer to patients.”
Conservative MP Philip Davies described the guidelines as “completely ridiculous”.
The Telegraph reports that Heather Ashton, of the transgender support group TG Pals welcomed the new guidance, stating that the change in terminology “can only be a positive thing”.
The BMA issued the booklet to reinforce the use of inclusive language as part of its commitment to equality and inclusion.