Eyebrow tattooing is not recommended during menstruation. Because eyebrow tattooing is essentially an invasive skin coloring procedure, the color is implanted in the skin with a tattooing device to form a new eyebrow shape that will not fade for a long time, which is an invasive medical cosmetic procedure. During menstruation, women’s sebum secretion increases and their skin becomes greasy, while capillaries dilate and skin becomes sensitive due to the influence of progesterone secreted by the body. Moreover, the metabolism of fat and water slows down during menstruation, and the female body is very weak during this special period, resulting in decreased resistance and poor blood clotting function. If eyebrow tattooing is performed during menstruation, it will cause excessive bleeding due to capillary dilation, which may eventually affect the shape and final color of the tattoo. The operation of embroidery should be carried out under safe conditions, and must have special instruments and tools, sterilization and hygiene, and also requires the embroidery operator to have certain basic knowledge of medicine and aesthetics, and well-trained operating skills. Therefore, it is important to go to a regular institution and look for a professional aesthetic doctor to perform the embroidery operation.