Pilonidal Sinus Disease is one of the most important branches of medical practice because of its complexities and which often is mired by misguiding symptoms. This ailment is often found affecting young and healthy people. Pilonidal sinus disease consists of a symptom complex with presentation that ranges from asymptomatic pits to painful draining lesions that are predominantly located in sacrococcygeal region. Though it is not life threatening, yet it remains troublesome, disabling nuisance and an embarrassing disease condition with considerable discomfort and morbidity. This book contains six chapters, of which the first five elaborates etiology, pathogenesis, presentations of the disease, conservative management and surgical options for sacrococcygeal pilonidal sinus disease while the last chapter briefs about pilonidal sinuses present at other sites as well as complications attendant to the disease. Adequate illustrations have also been inserted with regard to specific presentations and treatment options appropriately This book is an attempt to brief the disease in a nutshell and would be useful as a ready reckoner for family physicians and surgeons in general.