You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The following are causes of face presentation in a foetus? 1. Anencephaly 2. Multiparity 3. Hydraminos 4. Contracted Pelvis 5. Placenta prae and explain in detail?
Face presentation can occur due to maternal and fetal factors. Maternal factors includes multiparity, lateral obliquity of uterus and contracted pelvis. Fetal factors includes anencephaly, congenital goitre, dolichocephalic head with long AP diameter, congenital branchocele, twisting of the cord round the neck and increased tone of extensor group of neck muscles. Ref: Textbook of Obstetrics by D.C Dutta 6th edition page 389.