Internal monitors
A wire on your baby’s scalp, and a catheter inside your uterus.
If the external monitor cannot pick up a good signal, a small spiral electrode may be screwed into the skin of your baby's scalp, and a thin pressure catheter may be threaded into your uterus alongside the baby.
Both require your membranes to be ruptured. Both are usually described as routine. Both are procedures on you and your baby, and both require your consent. Ask what problem the internal monitor is solving before agreeing.
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This page is educational. It supports the conversation with your own clinicians. It is not consent to any treatment, and it cannot assess you. If you are worried about a symptom now, see urgent warning signs.