The present manuscript preserves a copy of a brief medical treatise by the erudite polymath Aḥmad ibn ʻAbd al-Munʻim al-Damanhūrī (1690–1778). The name of al-Damanhūrī more traditionally is connected with his activity as a professor at Al-Azhar University in Cairo and with his numerous treatises on politics, Islamic law, logic, and rhetoric. One of his works, a fatwain which he criticized the building of new churches and the reopening of old ones in 18th-century Cairo, recently has been published in English translation. The treatise in this manuscript shows a different aspect of al-Damanhūrī's intellectual activity: his medical knowledge. The Kalām al-yasīr fī ʻilāj al-maqʻada wa-al-bawāsīr (The little treatise on the medical treatment of the back and of hemorrhoids) is a medical work in which al-Damanhūrī addresses the treatment of calculi—in particular of kidney and bladder calcul—and deals briefly with cures for hemorrhoids and for back pain. A noteworthy feature of the work is the practical and straightforward style in which the author explains the possible remedies for these illnesses.