Effect of photobiomodulation on chronic inflammation of the thyroid gland

The so-called Hashimoto’s disease is one of the most common autoimmune diseases in humans, unfortunately, there is still no available treatment for the pathological mechanisms. This disease, which mainly affects women several times more than men, was investigated by Turkish specialists who in 2020 published a study entitled “Impact of Photobiomodulation on T3/T4 Ratio and Quality of Life in Hashimoto Thyroiditis“.

In the study, 350 people with this disease were divided into two groups. One group was exposed to photobiomodulation therapy and dietary supplements, such as selenium, iron and vitamin D, while the other group received only these dietary supplements without photobiomodulation therapy. The level of LT4 substitution, autoantibodies and other hormones listed directly in the study were examined.

The results of the study clearly showed an improvement in the health status of the group exposed to photobiomodulation therapy, in which the measured values reached the desired “healthier” values.

“Our results are encouraging and PBM seems to be very effective in increasing T3/T4 ratio and decreasing TPO Ab levels and weekly dosages of LT4 replacement therapy. Anti-inflammatory properties of PBM are greatly responsible for these changes and PBM causes major improvements in HT-related symptoms of the patient.”


Impact of Photobiomodulation on T3/T4 Ratio and Quality of Life in Hashimoto Tryroiditis
Candas ErcetinNuri Alper Sahbaz, Sami AcarFirat Tutal, Yesim Erbil