Edged medical cutting tool

A method of producing a medical cutting tool for incising a biological tissue, the medical cutting tool being made of austenitic stainless steel, the method comprising the steps of:

• forming a medical cutting tool having a cutting edge and plane portions that form the cutting edge press working;
• performing an electrolytic polishing to the medical cutting tool formed by press working;
• detecting by quantitative analysis using X-ray analysis, after the electrolytic polishing, a first chromium content per unit mass of an area of the plane portions which is adjacent to the edge and a second chromium content per unit mass of the other area on the plane portions which is not adjacent to the edge;
• and
• determining that the cutting edge has sufficient sharpness when the first chromium content per unit mass is larger than the second chromium content per unit mass.