Leukemia may manifest with symptoms related to anemia, bleeding as well as infection. 1. Anemia: Pallor, loss of appetite, frequent dizziness, weakness of limbs, palpitations (rapid heartbeat, often accompanied by panic), shortness of breath, fatigue, and even dyspnea may occur. 2. Bleeding: Unexplained bleeding on the body, such as bleeding from the fundus of the eye, bleeding from the nose, bleeding in the ear, bleeding from the digestive tract, bleeding from the gums, intracranial hemorrhage, and unexplained petechiae, bruises, ecchymosis, and other manifestations on the body. 3. Infection: sudden high fever, high fever that does not go away, symptoms similar to flu, or various bacterial, viral and fungal infections and other symptoms. When the above mentioned symptoms occur in the body, you should consult a doctor in time and get treatment under the doctor’s guidance to avoid delaying the condition.