Abū Bakr Muḥammad ibn Zakariyyā al-Rāzī (865-925), known in the West as Rhazes, was one of the pioneer figures of the golden age of Islamic science and medicine during the middle ages. Kiṭab al-Ḥāwī fī al-Ṭibb (Liber Continens), Kitāb al-Ṭibb al-Manṣūrī (Liber Medicinalis ad Almansorem) and Kitāb al-Judarī wa al-Ḥaṣba (Liber de Pestilentia) are his very well-known works in medicine. One of his books Kitāb al-Tajārib (The Book of Experiences/The Casebook), was written in Arabic and one of its copies is Ahmed III, Nr. 1975 manuscript in Topkapı Palace Library in Istanbul. A physician, Ali Munshi of Bursa, translated Kitāb al-Tajārib into Turkish in the 18th century and Hamidiye, Nr. 1013; Veliyuddin Efendi, Nr. 2487 and orum, Nr. 2909 manuscripts are the copies of its Turkish translation in different libraries in Turkey. Both the book and its Turkish translation contain 31 chapters; 30 of them concerning diseases from head to heel and the last one on pharmaceutics. The 21st chapter, fī awjā' al-kulā wa al-mathāna wa al-bāh, of Kitāb al-Tajārib is on pains of the kidney, and the bladder, and coitus. Evaluation and presentation of the cases in this chapter regarding the kidney and the bladder are the aims of this report.