Hematologic disorders are mostly refractory diseases with insidious onset and insidious symptoms, which are often not detected by patients themselves even if they are ill. Therefore, it is especially important to raise awareness of the disease so that early detection and early treatment can be achieved. The following 10 conditions require a high degree of vigilance for hematologic disorders and prompt medical attention. 1, the body is increasingly weak, long sigh “now is not as good as before”, mental lethargy, limbs sore, less energy, lazy; 2, weak, often cold, or cold for a long time; often low fever, or even high fever; 3, dizziness, headache, dizziness, blurred vision, tinnitus, palpitations, shortness of breath, or even fainting; 4, pale face, yellow, wilted. 4, the face is pale, yellowish, and floating, the lips and tongue are light and bloodless, the conjunctiva is pale; or the eye sockets are dark (commonly known as “black eyes”), or the face is red, purple and lusterless (true erythrocytosis face); 5, the hair is withered and lustrous, hair loss; the nails are flat and sunken, easily folded and cracked; the skin is dry and wrinkled, with poor elasticity; the mouth is eroded, the gums are swollen, and the tongue is glossy 6. Bleeding spots or bruises are common on the skin, and bleeding will not stop when there is a slight stab or scratch. 10. Abnormal blood and bone marrow examination.