There are 3 ways to check for mycoplasma and chlamydia infections in children: 1. Take a throat swab specimen for a rapid culture of mycoplasma and chlamydia, if the culture result is positive, it indicates infection. 2. Check for antibodies, there are usually 2 ways, such as you can do mycoplasma, chlamydia, IgM, IgG antibody test, if IgM positive can indicate mycoplasma and chlamydia present infection. In addition, you can also draw blood to do mycoplasma, chlamydia total antibody test, if the total antibody titer is greater than 1:160 or more, combined with clinical symptoms can be considered infected. 3, take a throat swab specimen to do mycoplasma, chlamydia, DNA testing, if the test results of the copy number is relatively high, can also be diagnosed as mycoplasma, chlamydia infection.