1.Never ignore the slight edema of the upper limbs or chest, if there is aggravation, promptly tell the doctor; 2.Avoid blood sampling and injection of the affected limbs; 3.Avoid measuring blood pressure of the affected limbs, if bilateral upper limb lymphedema, blood pressure can be measured in the lower limbs; 4.Keep the skin of the affected limbs, especially the folds and finger gaps clean and dry, rub moisturizer after bathing; 5.Avoid doing strenuous repetitive movements that increase the resistance of the affected limbs, such as scrubbing or pushing and pulling 6.Do not lift heavy objects (5kg), carry bags on the healthy side; 7.Do not wear tight necklaces and elastic bracelets; 8.Avoid high temperatures when showering or washing dishes, avoid saunas or hot baths, use sunscreen products; 9.Avoid injuries to the affected limb, such as cuts, burns, sports injuries, insect bites, scratches, etc., and avoid any injuries when trimming nails; 10.Maintain an ideal weight, eat a low-salt, high-protein, easy-to-digest diet, avoid smoking, smoking, and other harmful substances. Avoid wearing gloves when doing housework or planting flowers; 12. Avoid overworking the affected limb, rest when the limb feels pain, and elevate the limb; 13. If the cuff is too loose, it may be caused by the circumference of the upper limb becoming smaller or the cuff is worn out; 18. or fever are to be reported promptly.