Immunoglobulin light chain k is high, considering the possible presence of multiple myeloma, Wahl’s macroglobulinemia, etc. It is recommended to consult the Department of Rheumatology and Nephrology of the regular hospital for further diagnosis and treatment. Immunoglobulin light chain is also known as peripheral protein, there are two types of peripheral protein, normal human urine does not contain peripheral protein, the test is negative. The finding of elevated immunoglobulin light chain k in urine is usually due to plasma cell diseases, such as multiple myeloma and Wahl’s macroglobulinemia. These patients cause increased synthesis of light chains in the body, which can be detected in the urine after glomerular filtration. The presence of the protein k type of the week is detected in the urine indicating overflow proteinuria. If you find that immunoglobulin light chain k is increased, it is recommended that you go to the hospital for further examination and treatment, and do not be negligent.