Feeling tired all the time may not necessarily be a precursor of cancer. It is necessary to combine the patient’s own state, whether there are some underlying diseases or clinical symptoms, and timely medical consultation as well as clinical related examinations with one’s own situation before a clear diagnosis can be made. Feeling tired all the time does not necessarily mean cancer, it may be a state of subhealth, such as overwork, fatigue, weakness of spleen and stomach, lack of qi and blood, which may also lead to physical fatigue and weakness, and a state of feeling tired all the time. Therefore, it is recommended that patients must usually pay attention to a nutritious and balanced diet, eat less greasy food, smoking, drinking alcohol and other bad habits must be quit. To regulate the function of the spleen and stomach, if necessary, Chinese herbal remedies to relieve fatigue. Therefore, it is recommended that patients must seek medical attention promptly with symptoms so as not to delay the disease and eliminate their own doubts.