Abu al-Qasim al-Zahrawi (c. 936–c. 1013), known in Europe as Albucasis, was a surgeon from Cordoba in Muslim Spain (al-Andalus). He is widely called the “father of modern surgery”. His great medical encyclopedia, Al-Tasrif, ended with a book on surgery that contained drawings of more than 200 instruments. Britannica describes that book as the first illustrated independent work on surgery, and after it was translated into Latin it became the leading surgical textbook in Christian Europe for nearly 500 years.
Quick facts
| Full name | Abu al-Qasim Khalaf ibn al-Abbas al-Zahrawi |
| Latin name | Albucasis (also Abulcasis) |
| Born | c. 936 CE, near Cordoba (al-Andalus, today’s Spain) |
| Died | c. 1013 CE, Cordoba |
| Fields | Surgery, medicine, pharmacy, dentistry, obstetrics |
| Most famous work | Kitab al-Tasrif li-man ‘ajaza ‘an al-ta’lif (“The Method of Medicine”), 30 parts |
| Known for | Illustrating 200+ surgical instruments; the earliest known description of haemophilia |
Life in Cordoba, the jewel of al-Andalus
Al-Zahrawi was born around 936 near Cordoba, then one of the largest and most learned cities in Europe. His name points to Madinat al-Zahra, the royal palace-city built just outside Cordoba by the Umayyad caliph Abd al-Rahman III. Sources say his family descended from the Ansar, the people of Madinah who supported the Prophet ﷺ, and who had settled in Spain generations earlier.
Very little is known about his personal life, because early biographers wrote only a few lines about him. Britannica says he was court physician to Caliph Abd al-Rahman III; some other writers link him with the next caliph, al-Hakam II. What is certain is that he practised medicine for around fifty years and put that experience into his writing. He died around 1013, the same troubled years in which Madinat al-Zahra was sacked during civil war.
Al-Tasrif: a 30-part medical encyclopedia
Al-Zahrawi’s life’s work was Al-Tasrif li-man ‘ajaza ‘an al-ta’lif, which roughly means “a guide for those who cannot compile a book themselves”. It was completed around the year 1000 and is divided into 30 treatises. It covers a huge range of topics, including:
- Diseases and their treatment – the opening treatises classify hundreds of diseases.
- Pharmacy – Book 28, on preparing medicines, was translated into Latin as Liber Servitoris.
- Specialist areas – including eye, ear, nose and throat problems, urology and military medicine.
- Surgery – the 30th and final treatise, which made him famous.
Like most medical writers of his time, he built on earlier authorities. Britannica notes that much of Al-Tasrif draws on the Byzantine physician Paul of Aegina. But he added a great deal from his own practice, and he wrote in a clear, practical style meant for working doctors.
The book on surgery and its 200 instruments
The surgery treatise is divided into three parts: cauterisation (using heated irons to stop bleeding and treat disease), operations (cutting, stitching, removing stones and growths), and bone-setting (fractures and dislocations).
What made it special was the pictures. Al-Zahrawi drew more than 200 instruments – scalpels, hooks, probes, forceps, saws, retractors and specula – and often explained exactly how each one was held and used. Before this, surgical knowledge was usually passed on by watching a master. With his drawings, a student in another city, or another century, could see the tool and copy it. Many of his designs are clear ancestors of instruments still found in operating theatres today.
New techniques: from teeth to childbirth
Al-Zahrawi described procedures across almost every area of surgery. The University of California Press edition of On Surgery and Instruments credits him with the tonsil guillotine, the vaginal speculum and the plaster cast for fractures. Other works credited to him include:
- Dentistry – he drew dental instruments, described many dental operations, and explained a way to replace defective teeth with artificial ones.
- Childbirth – he described instruments and methods for difficult deliveries.
- Stitching wounds – he is often credited as the first to use catgut (thread made from animal intestine) for internal stitches, because the body can absorb it. This claim is widely repeated, though historians have not settled who used it first.
- Bladder stones – he gave detailed methods for removing them.
A concrete example: for a broken limb, the bone must be held perfectly still while it heals. Al-Zahrawi is credited with using a hardened cast around the bandaged limb to do this – the same basic principle behind the plaster cast a doctor would put on a broken arm today.
The first description of haemophilia
Al-Zahrawi wrote about a family in which men bled to death from small wounds, while the women in the family did not suffer from it. Britannica calls this the earliest known description of haemophilia, the inherited bleeding disorder that mainly affects males. It shows his habit of careful observation, centuries before anyone understood genes.
His legacy
Interestingly, Britannica notes that physicians in the eastern Islamic world largely ignored Al-Tasrif. Europe was a different story. In the 12th century, Gerard of Cremona translated the surgery book into Latin in Toledo. It was printed many times in the 1400s and 1500s, and it became the leading surgical textbook in Christian Europe for nearly 500 years, even preferred to the works of Galen for its clarity.
Famous European surgeons such as Guy de Chauliac quoted him and ranked him alongside Hippocrates and Galen. Today, Cordoba remembers him with a street named after him, and in 1992 replicas of his instruments made under the scholar Fuat Sezgin were shown at Madrid’s National Archaeological Museum.
Frequently asked questions
What did Al-Zahrawi invent?
He described and drew more than 200 surgical instruments, many of them his own designs. He is credited with tools such as a tonsil guillotine and a vaginal speculum, and with the idea of a hardened cast for fractures. He is also often credited with using catgut for internal stitches.
Why is Al-Zahrawi called the father of modern surgery?
Because his surgery book was the first illustrated independent work on the subject, it set out instruments and procedures step by step, and it trained European surgeons for about five centuries. Many later surgical writers built directly on his work.
What is Kitab al-Tasrif?
Kitab al-Tasrif is Al-Zahrawi’s 30-part medical encyclopedia, completed around 1000 CE. It covers diseases, medicines, specialist areas of medicine and surgery. Its final part, on surgery, is the most famous and was translated into Latin in the 12th century.
Read more: 16 Great Muslim Scientists · Ibn Sina (Avicenna): The Prince of Physicians · Al-Biruni: The Scholar Who Measured the Earth
Sources: Britannica – Abu al-Qasim al-Zahrawi · Muslim Heritage – Abu al-Qasim al-Zahrawi, the Great Surgeon · University of California Press – Albucasis on Surgery and Instruments
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