Yes, it is completely normal. Some people get marks, some dont; some more, others less – it partly depends on your skin type. If you have sensitive skin, we recommend first massaging and warming the skin with your hands and creating less vacuum with the cup at the beginning. After a few days, when your skin has started to get used to the cupping massage, you can gradually increase the vacuum.
The cups can lead to marks that resemble bruises but should not be confused with them. It is completely harmless and only affects the outermost layers of the skin. According to TCM (Traditional Chinese Medicine), it is usually the case that if you have good circulation in the area, no marks will appear, and where circulation is stagnant, bluish marks may occur. These marks usually fade and disappear after a few days. The marks that appear can be the result of toxins coming to the surface, stagnation, previous injury, or lactic acid produced by the muscles. If redness or itching occurs, it is likely due to the increased blood circulation. For those with sensitive skin, it is also common to get marks.