Previously, we have found that chinese ink injected into rabbit pleural cavity or duck skin is detected in the lymphatic capillaries at an early stage and then gathers around and absorbs into the veins of small caliber with time. In order to ascertain whether the same observation is made with human skin, we have investigated the tattoo skin histologically. It was found that the chinese ink gathers preferentially around the veins of small caliber and sweat glands which are especially rich in reticular fibers. Thus it was found that the chinese ink injected into human skin shows the same behavior as the ink injected into duck skin or rabbit pleural cavity.