Iminoglycinuria is a medical condition that refers to the inability of the kidneys to reabsorb certain amino acids, resulting in their excretion in urine. Some synonyms for this condition include imino aciduria, proline-pipecolic aciduria, hyperprolinemia type II, and prolinuria. These terms are used interchangeably but refer to the same disorder that can lead to various health complications such as growth retardation, intellectual disability, and seizures. Managing iminoglycinuria typically involves dietary modifications to limit the intake of the affected amino acids and supplementing with vitamin B6. Early diagnosis and treatment are crucial to prevent long-term complications and improve quality of life for those affected.