In a medical context, “stitches” refers to the surgical sutures used to close a wound. Some synonyms for “stitches” in a medical setting are “sutures” and “seams”.
“Sutures” are specifically the threads or materials used to sew up a wound. For example, “The doctor carefully placed the sutures to close the incision.” This term is widely used in medical literature and discussions.
“Seams” can also be used in a medical sense to describe the closed area created by stitching. “The wound was neatly sealed with seams that would heal over time.” While not as commonly used as “sutures”, “seams” can still convey the idea of a closed wound created by stitching.