Abstract: THE PRELIMINARY EVALUATION ON SCLERODERMAS OF NEWBORN BABY WITH THYROID HORMONE AND β_2-MG RIA Liu Junchi；Du Sujun（The second people's Hospital of sichuan province,Neijiang 641003）ABSTRACT The combined determination of thyroid hormone and β_2-MG may be used as the sensitive indica-tion of the early degeneration of liver and kidney function. It is probably due to the damage of liverand kidney by scleroderma in newborn baby.The observation of 68 cases show that the serum levelsof T_3，FT_3 in the concentration of thyroid hormone decreased significantly，and syndrome of the lowserum T_3，high serum rT_3 are taken place. Whereas，the sertim level of β_2-MG is increased significant-ly. Key words thyroid hormone β_2-MG sclerodermas of newborn baby low T_3 and high serumrT_3 syndrome