Can you use light therapy when you are pregnant?

There is no indication that light therapy would have negative effects during pregnancy, and many people use, for example, red light therapy against the skin changes that are sometimes experienced in connection with pregnancy. However, we recommend not having the light therapy lamp just against the abdomen or the back, as the light can actually reach the fetus and have a disturbing effect. However, no research has shown that light therapy is harmful to the fetus, but one can imagine that it can affect its circadian rhythm if it is performed at times when it is not normally possible to get sun exposure.