Nephrology is conditions that affect the kidneys and systemic problems appear as a result of kidney problems (such as renal osteodystrophy and hypertension) are also studied in nephrology. An expert who deals with nephrology diagnosis and management are considered as a nephrologist. According to 2010 Global Burden of disease study, nephrological disorders was ranked 27th in the list of a total number of deaths worldwide in 1990 and it comes up to 18th in 2010. As per data dialysis patient population has been growing every year in Japan more than 310,000 patients are treated with maintenance dialysis by the end of 2012 still every year there is an increase of new patients up to 30,000 more has been observed. Study of Nephrology in Japan can be benefited by open access journals as open access impact factor journals is online availability of research articles which gives breakthrough into better life by getting more readers, more potential collaborators, more citations for the research data been published and supported by Japan nephrology.