Exposure to the sun can increase the core temperature of the pregnant woman, this in turn can elevate the temperature of the fetus, which can cause brain damage if raised high enough or long enough. While pregnant the hormones, mainly estrogen, in your body actually can increase the risk of cholasma or mask of pregnancy when exposed to the sun. These darkened spots, usually on the forehead and across the nose, may or may not retreat after pregnancy. The simple answer for those who want a bronzed body might seem to be means of artificial tanning. Considering the fact that tanning beds and self tanners have been around a relatively short period of time and have even fewer amounts of studies placed on them, particularly as it relates to pregnancy, the jury is out.
Many practitioners say err on the side of caution and avoid the artificial means of tanning as well.
Tanning beds reduce the risks of overheating as opposed to natural sunlight. Although there are the same risks of pregnancy skin problems and the usual risks of sun related disorders. The ultraviolet radiation from the beds does increase the rate of aging of the skin, substantially increasing the risks of skin cancer. Tanning cremes, or self-tanning lotions, are another product that are pushed hot and heavy during the summer and winter months. Because of the exposure of this chemical to the skin, the DHA will be absorbed and cross through the placenta to the baby.