Noninvasive is a medical term used to describe a procedure or treatment that doesn't involve breaking the skin or entering the body. There are several synonyms for noninvasive, including non-surgical, minimally invasive, painless, harmless and safe. These terms reflect the fact that noninvasive procedures typically involve little to no discomfort or risk of complications for patients. Non-invasive treatments are becoming increasingly popular in healthcare as an alternative to more invasive procedures, as they offer patients a more comfortable and less risky experience. Some examples of noninvasive treatments include ultrasound, magnetic resonance imaging (MRI), and laser therapy.