Abul Hassan Ali Ibn-Radwan Ibn-Ali Ibn-Gaafar belonged to a working class family. He was born in the environs of Giza, where his father was a baker. He studied and practiced medicine before reaching the age of fifteen. He also practiced astrology to earn his living so that he could continue his study of medicine and philosophy.
He was a contemporary of Ibn Al-Haitham the notable scholar, with whom he had scientific correspondence. He worked for the Caliph Al-Hakim Bi Amr Allah, and was the head of the Egyptian physicians at that time. He lent an Arab-Islamic character to Hippocrates' medical oath. In his books he described the attributes of the ideal physician, particularly fidelity and decency, especially while treating women. The date of his death is not certain. It is estimated to be between 453 after Hijra and 460 after Hijra.
His most important book on medicine is "Dafe' Madaar al Abdaan Be Ard Misr" (Driving away body harms in the land of Egypt) and another book, "Al-Oussool fi al Tibb," (The principles in medicine) was translated into Hebrew. In addition he wrote a number of essays on various medical subjects, among them his theses on leprosy, elephantiasis, epidemics, dyspnea, laxatives, syrups, and salves.