The said small tummy is generally the lower abdomen below the navel. According to their age, if they are really older, 40-50 years old or more, there is a bloated stomach and does not hurt, we should go to the hospital to check whether there is a substantial problem; if the age of the small stomach bloated but does not hurt, we recommend that you use hot compresses to relieve the pain. At the same time, daily physical exercise should be increased to keep the qi and blood active. When the qi and blood are open and the meridians are open, pain will not occur often and bloating will occur less often. Inside the lower abdomen is the genitourinary system. The so-called genitourinary system like the bladder, kidneys or prostate in men and uterus in women are all in that area, and the swelling inside is sometimes caused by Qi in the intestines and the accumulation of Qi in the intestines, so naturally it does not hurt. Sometimes there is inflammation of the adnexa and uterus in women, resulting in a swollen stomach, which may be accompanied by a slight soreness, a pain that is not obvious and easily ignored. For example, men who have prostate enlargement and unfavorable urine discharge may also have a swollen stomach but no pain.