A Japanese surgeon can connect blood or lymph vessels less than 1mm. Supermicrosurgery specialist Takumi Yamamoto, 37, has done 10,000 sutures, reconstructing limbs and treating lymphedema, which had been thought to be impossible. Sensation returns to reconstructed limbs. Lymphedema, which often occurs as a result of cancer treatment, can be remedied by connecting extremely fine lymph vessels. This is made possible with 0.03mm needles made only by Japanese craftsmen.