The electrode is placed during a vaginal examination and is no more uncomfortable than this. Placing a scalp electrode may be mildly uncomfortable for your baby and there is a small risk that your baby could get a scalp infection, which can be treated with antibiotics. Even though these risks are small, a scalp electrode should not be placed routinely. Your doctor should discuss how it works before it is placed, and you should understand why it’s being done. Electrodes should also be avoided if you have a viral disease that can be transmitted to your baby during labor, such as hepatitis B or C, or HIV. Once a scalp electrode has been placed, you can’t move far from the monitor, although you may be able to change position. If a EFM reading from the scalp electrode indicates that your baby is distressed, a blood sample may be taken from the scalp to check acidity levels. If these are high, a cesarean or assisted delivery may be suggested.