MEDICAL SUTURE NEEDLE

The strength of a tip portion where a sharp point is formed is improved and the piercing resistance is reduced while minimizing the piercing mark after the needle is passed through a tissue. The medical suture needle comprises stainless steel and has a cutting blade component part (10) and a body part (20) continuous with the cutting blade component part; the cutting blade component part is formedin a shape such that the thickness thereof decreases from the body part toward a point (14), and has a first cutting blade part (11) and a second cutting blade part (12) continuous with the first cutting blade part; the first cutting blade part has two first inclined surfaces (11b) with a top part (11a) formed so as to be interposed therebetween, and has one first bottom surface (11c) interposedbetween the first inclined surfaces, a cutting blade (11d) being formed on an edge that constitutes the top part and on an edge where the first bottom surface and first inclined surfaces intersect with each other; the second c