This book describes the literature review and the research findings in the Peritoneal fluid found in infertile patients with Pelvic inflammatory disease. The study investigated the role of Peritoneal fluid in the Pathophysiology of the infertility found in these groups of patients. Various parameters used in the investigation include Peritoneal fluid volume,White blood cell count, Sperm penetration test, Total protein, Albumin Acid phosphatase, Sperm survival tests, Cytological analysis and hormonal studies. Results of the investigations are detailed in the book. Infertility is a medical problem facing many couples in different parts of the world and even the Medical Practitioners who are called to proffer solution to their problems. Therefore this book will be useful and is recommended for infertile couples,Medical practitioners mostly those in the field of Obstetrics and Gynaecology, Medical research Scientists, Nurses, Medical and allied Health Sciences students.