CHAPTER I
INTRODUCTION
A. DEFINITION
Urolithiasis is a disease that is symptomatic of the formation of stones in the urinary tract. Suspected urinary tract stone formation related to urine flow disorders, metabolic disorders, urinary tract infection, dehydration, and other circumstances that remain unclear (idiopathic).
Epidemiologically, there are several factors that facilitate the occurrence of urinary tract stones at someone. These factors are intrinsic factor which is the state that comes from one's body and extrinsic factors that influence comes from the surrounding environment.
Intrinsic factors such as:
A. Hereditary (hereditary). The disease is thought to be derived from his parents.
2. Age. The disease is most often obtained at the age of 30-50 years.
3. Gender. The number of male patients are three times more than the number of female patients.
Several extrinsic factors such as:
A. Geography. In some areas show the incidence of urinary tract stones are higher than other areas and became known as the stone belt (belt rocks), while the Bantu in South Africa found almost no urinary tract stone disease.
