The book "The Danger and Obscenity of the Modern Too General Custom of the Unnecessary Use of Water Collectors. Letters Recently Appeared by a Water Collector. With an Introduction, a Treatise on Milk, and an Appendix" was written by an unknown author or authors. This book examines the nature and consequences of the excessive involvement of male birth attendants, and also raises the issue of ethics and morality in this professional field. In addition, the book has an introduction that explains the main topic, a treatise on milk as an important aspect of health, and an appendix with additional materials. This book may be useful for those interested in the history of medicine and gender issues in the medical field.