Al-Zahrawi

Abū al-Qāsim Khalaf ibn al-'Abbās al-Zahrāwī al-Ansari, known in Latin as Albucasis, was an Andalusian physician, surgeon, and chemist active around the 10th and early 11th centuries. He is widely regarded as one of the finest surgeons of the medieval period. His major achievement was the *Kitab al-Tasrif*, a thirty-volume medical encyclopedia. The volume on surgery was later rendered into Latin and served as Europe’s go-to surgical textbook for five centuries.

Al-Zahrawi was born in the city of Azahara, about eight kilometers northwest of Córdoba, likely around 936—the same year the city was founded. The name "Al-Ansari" in his title points to ancestral roots in the Medinian tribe of Al-Ansar, tracing back to Medina. He spent most of his life in Córdoba, where he studied, taught, and practiced medicine and surgery until shortly before his death around 1013, two years after Azahara was sacked. Because of the destruction of El-Zahra in later conflicts between Castile and al-Andalus, few personal details survive beyond his writings. His name first appears in the work of Abu Muhammad bin Hazm, who listed him among the greatest physicians of Moorish Spain. The first detailed biography came from al-Ḥumaydī’s *Jadhwat al-Muqtabis*, completed sixty years after al-Zahrawi’s death.

He served as court physician to Caliph Al-Hakam II, a position that gave him access to advanced medical knowledge and resources. This allowed him to develop new surgical techniques and instruments. He was a contemporary of Andalusian chemists such as Ibn al-Wafid, al-Majriti, and Artephius. He devoted his life to advancing medicine, especially surgery.

Al-Zahrawi specialized in treating disease through cauterization. He invented devices for inspecting the inside of the urethra and for examining and removing foreign objects from the throat, ear, and other body parts. He was the first to illustrate various cannulae and the first to treat a wart using an iron tube and caustic metal as a boring tool. Although he never performed a tracheotomy, he treated a slave girl who had cut her own throat in a suicide attempt. He sewed the wound, and she recovered, proving that a cut in the larynx could heal. He described the case, noting that only a little bleeding occurred, no major artery or vein was severed, and air escaped through the wound. After suturing, the girl healed with only slight hoarseness. Al-Zahrawi also pioneered neurosurgery and neurological diagnosis, performing treatments for head injuries, skull fractures, spinal injuries, hydrocephalus, subdural effusions, and headache. He gave the first clinical description of a procedure for hydrocephalus, detailing the evacuation of superficial intracranial fluid in children.

His encyclopedia, *Kitab al-Tasrif*, completed in the year 1000, covered surgery, medicine, orthopedics, ophthalmology, pharmacology, nutrition, dentistry, childbirth, and pathology. The first volume dealt with general medical principles, the second with pathology, and much of the rest with pharmacology and drugs. The final and most famous treatise was on surgery. Al-Zahrawi explained that he placed surgery last because it is the highest form of medicine and should only be practiced after mastering all other branches. The work drew on nearly fifty years of training, teaching, and practice. He stressed the importance of a positive doctor–patient relationship and affectionately referred to his students as "my children."

Al-Zahrawi pioneered the use of catgut for internal stitches, and some of his surgical instruments remain in use today. He was the first physician to identify the hereditary nature of hemophilia, to describe an abdominal pregnancy (a fatal condition at the time), and to discover the root cause of paralysis. He also developed devices for Caesarean sections and cataract surgeries.