1. Do not use if you have undergone surgery on the massaged part or have skin damage, redness, inflammation, congestion, and other symptoms.
2. People with heart disease or medical history, acute disease patients, skin disease patients, malignant tumor patients, bleeding tendency and other blood diseases, osteoporosis, soft tissue diseases, stroke, and other physical abnormalities should not be used.
3. Do not use it if you have slow movement, physical and mental discomfort, or intellectual. If you need to use it, please follow the doctor's advice.
4. Pregnant women and menstrual period are not recommended to use the massager. If you nnes to use it, please follow the doctor's advice.