This book is designed to provide a background in Medical Mycology for an introductory data in mycotic infections, and use technologies in laboratory diagnosis. It is also intended as a review for students preparing for examinations in medical mycology. The author considers it important for all health professionals- not just those who serve as health officers or who do research in mycology. The author hopes that this book will serve, at least for some, as a stepping stone to more advanced studies in line of this infections and the discovery of the successful treatment to reduce this type of infections.