Jr. Lewis H. Adler

Lewis H. Adler, Jr. (1864–1934) was an American physician and medical author. Project Gutenberg’s record for Fissure of the Anus and Fistula in Ano identifies him as the author and dates him to 1864–1934.

His best-known surviving book is a specialist treatise on rectal disease, first written in the late 19th century. In it, he explains symptoms, causes, diagnosis, and treatment in a clear professional voice, reflecting an effort to bring careful medical attention to conditions that were often overlooked or discussed reluctantly.

A separate medical publication identifies him as a resident physician at University Hospital, which helps place him in active hospital practice as well as medical writing. Beyond these points, the readily available public record is limited, so many biographical details about his life are not easy to confirm from reliable online sources.