Leukemia, also known as blood cancer, is a malignant tumor of the hematopoietic system. Patients with leukemia overproduce immature white blood cells, which interfere with the other work of the bone marrow, which reduces the bone marrow’s ability to produce other blood cells. Leukemia ranks first among malignant diseases in young people. So, what are the complications of leukemia? The following gives an overview of the complications of leukemia. 1, bleeding Leukemia patients due to the malignant proliferation of leukemia cells platelets significantly reduced, easy to cause respiratory, digestive tract urinary bleeding, especially intracranial bleeding, so according to the cause of the disease to fight to take active measures to stop bleeding including the infusion of concentrated platelets. 2, intestinal failure Due to the treatment of leukemia in the chemotherapy drug radiotherapy means affect the gastrointestinal function, and lead to fear of gastric failure, the patient’s nutritional supplementation has become a prominent problem currently using subclavian vein cannula to the superior vena cava for high nutrition infusion only solve part of the problem, nutritional deficiency can occur pneumonia, enteritis and other complications. 3, infection Because of leukemia caused by normal leukocyte reduction, especially neutrophil reduction, while chemotherapy and other factors also lead to a lack of granulocytes, so that patients are prone to serious infections or sepsis often cause infection of bacteria are: gram-positive bacteria, such as Staphylococcus aureus, hemolytic streptococcal rods and other gram-negative bacteria, such as Pseudomonas aeruginosa, Escherichia coli, Klebsiella, etc.. Mycobacterial infections such as Candida albicans, Aspergillus, Trichoderma, Cephalosporium, etc. Most of the above mycobacterial infections occur in patients with chronic low granulocyte leap or persistent fever and antibiotic insensitivity. Some patients treated with corticosteroids are more susceptible to viral infections, such as varicella, herpes zoster virus, and herpes simplex virus, due to low cellular immunity. Pneumocystis carinii infection is also common, and upper respiratory tract infection and pneumonia are the common types. 4, hyperuricemia normal people due to nucleic acid metabolism decomposition daily urine excretion of uric acid 300 ~ 500mg. leukemia patients due to a large number of nucleic acid decomposition of leukemia cells can increase the amount of uric acid excretion tens of times. When the patient receives chemotherapy and radiotherapy, hyperuricemia occurs, and the application of corticosteroids can increase hyperuricemia. The high concentration of uric acid will soon supersaturate and precipitate causing extensive damage to the kidney patella and uric acid stones, which can lead to oliguria and anuria. Treatment. 5. Pulmonary disorders Because leukemia patients have fewer normal mature neutrophils, immune function is reduced, often leading to lung infections. In addition, leukemia cell infiltration can block small blood vessels and bronchi in the lungs and cause dyspnea and respiratory distress syndrome, and the chest X-ray can have a hairy glassy or corn-like pattern, which can be used for experimental treatment of lung radiation. 6.Disseminated intravascular coagulation (DIC) Disseminated vascular is a group of serious bleeding syndromes. 7.Electrolyte imbalance During the treatment of leukodystrophy, there is often excessive potassium excretion due to excessive destruction of leukemic cells or due to chemotherapeutic drug renal damage, etc. Also, chemotherapy causes poor appetite for food, digestive system dysfunction and insufficient incorporation resulting in low blood potassium or increased phosphorus release due to destruction of leukemic cells, resulting in low calcium, etc. Therefore, it is important to pay attention to electrolyte concentrations such as potassium calcium and sodium during the treatment process.