The hazards of salt water foot soak are as follows: 1, a long time salt water foot soak, especially for some elderly people with heart disease, easily cause an increase in circulating blood volume, resulting in a rapid heart rate, while increasing the burden on the heart and dizziness, dizziness and even arrhythmia and other diseases; 2, salt water foot soak for patients with wounds on the feet will cause wound infection, and even stimulate severe pain in the wound; 3, salt Soak feet in salt water, if the patient appears to eat too much or too hungry, this situation soak feet will reduce the blood supply to the stomach, and indigestion. General salt water foot soak for the public is a good way of health care, you can carry out daily life care, but should pay attention to some complications and precautions, should consult more professionals.