Although some studies have suggested a relationship between NIH-IV prostatitis and serum prostate specific antigen (PSA) levels [8], [9], [10], and others have tried to describe the prevalence of NIH-IV prostatitis [11], [12], little is known about the effects of factors such as social characteristics, lifestyle, hypertension, diabetes, dyslipidemia, obesity and diabetes on NIH-IV prostatitis. The gene discussed is KLK3; the disease is obesity due to melanocortin 4 receptor deficiency.