Who gets kidney stones?

For unknown reasons, the number of people in the United States with kidney stones has increased over the past 30 years. At the end of 1970, less than 4 percent of the population had stone-forming disease. In early 1990, part of the disease in the population had grown to more than 5 percent. Caucasians are more prone to develop kidney stones of African-Americans. Stones occur more frequently in men. The incidence of kidney stones rises dramatically as men enter the age of 40 and continues to increase among the 70. In women, the incidence of kidney stones peaks in their 50 When a person receives more than a stone, other stones are likely to develop.