High-intensity focused ultrasound (HIFU) is a non-invasive medical procedure that uses focused ultrasound waves to target specific tissue areas in the body. These waves generate intense heat at the focal point, effectively ablating or destroying tissue without the need for incisions or surgery. HIFU has a range of medical applications, including treating tumors, reducing chronic pain, and improving cosmetic concerns like skin tightening. Its precision and minimal side effects make it a promising alternative to traditional surgical methods in various medical fields.