Even iodine coloration is less likely to cause cervical cancer, but it does not absolutely rule out cervical cancer.
During colposcopy, iodine is usually applied to the patient’s cervix to see if there is any coloration of the cervix, so as to initially determine whether there is any lesion in the cervix. Normal cervical cells are rich in glycogen and will show coloration when iodine is applied. Diseased cells do not contain glycogen and usually do not stain after iodine application or appear mustard-yellow locally.
Uniform coloration of the cervix often indicates that the cervical cells contain glycogen, and the initial diagnosis is that the cervical tissue is normal and the chance of developing cervical cancer is relatively low. However, cervical iodine test is not the gold standard for determining cervical diseases in women, so it cannot absolutely exclude cervical cancer. If it is necessary to exclude cervical cancer, it is necessary to carry out pathological and histological examination, combined with immunohistochemical examination to further clarify the diagnosis if necessary.
Consult your doctor for more details.