Malignant Melanoma is the most common malignancy reported during pregnancy, a Swedish registry reported last year (Cancer 2015). It is one of the most common malignancies in young women, and 1/3 of women affected are of child bearing age.
Moles can change a LOT during pregnancy. Mostly moles on the front of the body – abdomen/breast/chest – in areas of high stretch. When I look at moles under the dermatoscope, I often see increased blood vessels. Most of the time, this is due to the generalised increase in blood flow during pregnancy, but sometimes it’s a little bit more.
Evidence has suggested that perhaps the slight suppression of the immune system that occurs during pregnancy, may lead to tumour progression.
What does this mean for you? That moles in pregnancy should be treated as they are in non-pregnant women. Always be vigilant for watching out for any changes to your moles, and especially any new moles. The good news? Most suspicious moles can be removed safely during pregnancy, without threatening the baby!