Negative ions generally refer to negative air ions, and it is not clear what benefits do negative ions for liver cancer have on the body. Some reports show that negative air ions have the effect of adjusting the excitation and inhibition process of cerebral cortex, improving sleep, lowering blood pressure, strengthening the cilia movement of tracheal mucous membrane cells, increasing the basal metabolic rate, improving appetite, and enhancing the resistance of the body, etc. However, it has not been clinically proved yet. However, it has not been clinically confirmed yet, so it is not possible to determine what benefits liver cancer patients can get from doing negative ion therapy. Liver cancer patients should go to the hospital, complete all kinds of examinations, and after clarifying the specific situation, the doctor will synthesize all kinds of factors to formulate a suitable treatment, and do not blindly listen to the publicity and treat privately.