You might need an ultrasound scan » if you have pain, swelling, or a lump. It is also used to check the baby during pregnancy. Other signs to get a scan are missed periods, unusual bleeding, or if your doctor wants to check your heart, liver, or kidneys. An ultrasound is safe, quick, and helps find problems early. At HSCFW in London, we offer fast, private scans to help you understand what’s happening in your body.