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 Regarding diameters of normal female pelvis, which of the following is TRUE and explain in detail?
There is reason to suspect midpelvic contraction whenever the interspinous diameter is less than 10 cm. If the diameter is 8 cm or lesser, then its Diagnosed mid pelvic contraction