The skull of a newborn baby is often full of liquid, either because the matron has compressed it excessively or for other, unknown reasons. The volume of the skull then increases daily, so that the bones of the skull fail to close. In this case, we must open the middle of the skull in three places, make the liquid flow out, then close the wound and tighten the skull with a bandage.
Not always properly credited, modern evaluation of al-tasrif manuscripts has revealed on interesting descriptions of medical procedures that were ascribed to later scholars. For Example, Al-Zahrawi's al-Tasrif described both what would later become known as "Kocher's method" for treating a dislocated shoulder and "Walcher position" in obstetrics. Morover, Al-Tasrif described how to ligature blood vessels almost 600 years before Ambroise Paré, and was the first recorded book to explain the hereditary nature of haemophilia. He was also the first to describe a surgical procedure for ligating the temporal artery for migraine, also almost 600 years before Pare recorded that he had ligated his own temporal artery for headache that conforms to current descriptions of migraine. Al-Zahrawi was therefore the first to describe the migraine surgery procedure that is enjoying a revival in the 21st century, spearheaded by Elliot Shevel a South African surgeon.
Few details remain regarding his life, aside from his published work, due to the destruction of El-Zahra during later Castillian-Andalusian conflicts. His name first appears in the writings of Abu Muhammad bin Hazm (993 – 1064), who listed him among the greatest Physicians of Moorish Spain. But we have the first detailed biography of al-Zahrawī from al-Ḥumaydī's Jadhwat al-Muqtabis (On Andalusian Savants), completed six decades after al-Zahrawi's death.