Pregnancy
Medical evidence as to the safety of diving whilst pregnant is not conclusive. However there is evidence that deep diving may cause harm to the foetus. Certainly decompression illness and its subsequent treatment could be harmful to the foetus. Consequently if a woman is pregnant, or is trying to become pregnant, she is strongly advised not to dive. Women who decide they wish to continue to dive whilst pregnant, or trying to become pregnant, should only undertake shallow dives, ideally less than 10m and no deeper than 20m, and remain well inside no-stop times. Even at shallow depths there remains a risk of pulmonary barotrauma which could require recompression treatment and cause harm to the foetus. If a woman discovers she is pregnant and has been diving during the pregnancy, she is advised to discuss her case with a BSAC medical referee. The scientific evidence is not clear cut and ultrasound studies, together with other indications, may be useful to allay fears and help in the decision as to how the pregnancy should be managed