Moschkowitz Disease, also known as IgA nephropathy or Berger's disease, is a kidney disorder characterized by abnormal deposits of the protein immunoglobulin A (IgA) in the glomeruli, the tiny blood vessels in the kidneys. This condition is often marked by recurrent episodes of blood in the urine, or hematuria, which may be accompanied by mild to severe pain in the abdominal or back area. Though commonly referred to as Moschkowitz Disease, it is important to note its synonyms, IgA nephropathy and Berger's disease, as they are widely used in medical literature and discussions. Recognizing these alternative names ensures a comprehensive understanding of the condition and facilitates effective communication within the medical community.