Patient's question:
NoDoctor's answer:
Hello, the measurement method for the diagonal conjugata: The diagonal conjugata, also known as the sacropubic diameter, refers to the distance from the sacral promontory to the lower margin of the symphysis pubis, which should normally be greater than 11.5 centimeters. During measurement, the pregnant woman should lie supine on a flat bed, bend her legs, and hug her knees with both hands to bring her thighs close to her abdomen, raising her buttocks for easier examination. The examiner should wear gloves and gently insert the index and middle fingers into the vagina, moving along the front of the sacrum from below to above to locate the sacral promontory. The base of the fingers should be pressed slightly toward the perineum. In a normal pelvis, the sacral promontory cannot be palpated, indicating a diagonal conjugata greater than 11.5 centimeters. If the sacral promontory can be palpated, the examiner's middle fingertip should firmly contact the sacral promontory, while the index finger should be placed directly below the symphysis pubis. The examiner should then mark the spot with the index finger of the other hand, withdraw the fingers, and measure the distance from the mark to the tip of the middle finger, which is the length of the diagonal conjugata. If the examiner's fingers are short (the distance from the tip of the middle finger to the palm being less than 11.5 centimeters), a cork finger ring can be placed on the end of the middle finger.