The vast majority of patients with tumors may develop hydrothorax and ascites in later stages. How does pleural fluid appear? Like lung cancer, stomach cancer, breast cancer, esophageal cancer, etc., it is easy to have metastasis in the chest cavity in the late stage, and the tumor cells will be transferred to the pleura, and the human pleura will have a small amount of exudate to keep the pleura moist and reduce the friction of the organs on it, and the exudate will be absorbed by the human body. However, after there are tumor cells on the pleura, the malignant tumor cells will continue to multiply, which will lead to the more and more exudate and the human body can not absorb it quickly, and the less absorption, the pleural water will appear. However, when there are tumor cells on the pleura, the malignant tumor cells keep multiplying, resulting in more and more water oozing out, but the body cannot absorb it fast enough. After the appearance of pleural fluid, the patient will feel tightness in the chest, shortness of breath, cough, pain, and even dare not to lie down at all, as in the case of Ms. Zhang, which is very painful. The traditional treatment method is only pumping water. But pumping water is only symptomatic treatment, the tumor cells are not resolved, treating the symptoms but not the root cause, and the pleural fluid will only get worse and worse. Moreover, pumping is not only water, but body fluids, which will take away a lot of protein. For patients with middle and late stage tumors, these nutritional depletion is tantamount to adding insult to injury, and patients who are often pumped look as thin as a bone, and their stomachs are very big when they have ascites. Thermal perfusion is a specialized weapon to deal with tumor pleural fluid What kind of treatment is thermal perfusion? In the treatment room of the Department of Oncology of the Fifth Affiliated Hospital of Zhengzhou University, a patient who is undergoing treatment. Only to see two needles stuck in his back, connected to two tubes, the tubes connected to an instrument. Thermal perfusion is to heat the chemotherapy drugs and saline to about 42~45 degrees, and then enter the patient’s body to rinse repeatedly, and then drain out, and then inject some larger doses of chemotherapy drugs for the patient to absorb, to achieve the effect of killing tumor cells in the chest cavity. “The trauma is very small, only need to make two very thin needle eyes, when doing it the patient has little pain, and quickly relieve the pain of hydrothorax and ascites, do abdominal perfusion is lying down, many patients fall asleep while doing it.” Thermal perfusion is a treatment method that is very suitable for relieving patients with hydrothorax, it can not only pump out the hydrothorax, but also use drugs and hot saline to repeatedly rinse the chest cavity, due to the tumor cells are able to tolerate lower temperatures than normal cells, around 42 degrees tumor cells can apoptosis, using this principle, as long as the temperature is kept constant at around 42 degrees, the tumor cells can be killed, and also to ensure that the normal cells are not damaged , plus the addition of chemotherapy drugs can also kill tumor cells. After rinsing and discharging this liquid, and then hitting some high dose chemotherapy drugs, it is equal to do a local chemotherapy to consolidate the efficacy of the treatment. The tumor cells on the pleura are killed or reduced, which at least ensures that the pleural fluid will not appear again in one stage, greatly improving the patient’s quality of life and prolonging the patient’s life. Thermal perfusion can not only deal with pleural fluid, but likewise with abdominal fluid and pelvic fluid. Just as lung cancer and other tumors are prone to thoracic metastasis, digestive tract tumors, ovarian cancer and other tumors are prone to abdominal metastasis, and some tumors of the reproductive system are prone to pelvic metastasis, which will lead to ascites and pelvic fluid, and the treatment of thermal perfusion is applicable to them as well. In addition, besides treating the problem of fluid retention after tumor metastasis, thermal perfusion is also suitable for patients with omental metastasis and residual tumor cells after surgery. Some tumor patients, when opening the abdominal cavity in surgery, will find that there are already dense tumors like millet in the greater omentum, at this time the value of surgery is not great, such patients, it is suitable for thermal perfusion. In addition, patients who have tumor resection will have one step of routine operation during the surgery, that is, to flush with rinsing liquid, and then do examination on the rinsed liquid to see if there are tumor cells in it. Because tumor surgery can only remove visible lesions, but cannot do anything about very small lesions and tumor cells that have not yet formed a lesion, so once you find that there are still residual tumor cells in the surgical rinsing fluid, it is also suitable for thermal perfusion. All in all, it means that thermal perfusion is a good weapon for tiny and multiple tumor lesions or tumor cells.