1. Laser treatment uses non-ionizing radiation, which produces intense heat to destroy unwanted hair at the roots without causing cell mutation. Laser light beams only penetrate into the skin a few millimetres, however, non-ionizing radiation can be absorbed by surrounding tissue. While it has been proven to have no negative effects on the patient, doctors are not sure about how it could impact the fetus.
2. For some people, laser hair removal procedure can be slightly painful so some clinics will use a numbing cream. Of course, since the body absorbs anything applied to the skin, it is not recommended that you use this cream if you are pregnant. This can make the procedure unpleasant, and may be a good reason to wait until after the baby is born.
3. Skin can become more sensitive during pregnancy, so you may be more likely to experience pain, redness, or irritation.
4. The number of treatments required, and the length of time between re-treatments, depends on the duration of your hair's growth cycle. Since hormone changes associated with pregnancy can stimulate the maturation of dormant hair follicles, or shorten the growth cycle, some women find that re-growth appears much more quickly when they are pregnant. Since laser hair removal can be costly, why not wait until your hormones have returned to normal before undergoing treatment?
5. Laser hair removal can be awkward and uncomfortable in the later stages of pregnancy, especially on sensitive breasts or the bikini area (which should be avoided anyway). Since it usually takes between 6-12 months to achieve complete results, you should consider the length of this commitment before beginning. Doctors do not know if the risk to the baby increases with the number of treatments, so it is best to wait and begin a program after delivery.
6. Stopping treatment when you become pregnant will not hinder progress. If you have already started a series of treatments and then discover that you are pregnant, it is recommended that you postpone the rest of your sessions until post-delivery. Although you will be putting the process "on hold", you will not ruin the progress achieved during the first treatments.