Scientists have developed a groundbreaking wearable ultrasound patch that can continuously monitor an unborn baby, potentially revolutionising care for high-risk pregnancies. The flexible device, described as a wearable 'baby bump', can track foetal and umbilical cord movements for hours, detecting early warning signs of dangerous complications such as pre-eclampsia.
Continuous Monitoring Breakthrough
The research, published in the journal Nature Biotechnology, was led by engineers at the University of California San Diego. Unlike traditional ultrasound scans that provide only intermittent snapshots, this patch offers round-the-clock monitoring. In clinical tests, the device detected prolonged abnormal foetal signals that prompted an early Caesarean delivery, potentially saving the baby's life.
Expanding Access to Prenatal Care
The team believes the technology could significantly improve prenatal care in low-resource settings where skilled ultrasound technicians and continuous monitoring are scarce. Professor Sheng Xu of Stanford University, a senior author, explained that current systems 'are intermittent and can only capture a snapshot', missing crucial data between hospital visits. The new patch ensures clinicians 'don't miss any data', allowing them to identify baseline signals and analyse changes and patterns.
The wearable ultrasound patch represents a major step forward in foetal monitoring, offering hope for better outcomes in high-risk pregnancies worldwide.



