The common symptoms of acute leukemia include four main categories: infection, anemia, bleeding, and tumor infiltration. Symptoms of infection manifest as fever, cough, expectoration, chest pain, abdominal pain, diarrhea, frequent urination, urgent urination, painful urination, skin infections, and perianal infections. Anemia is characterized by dizziness, fatigue, poor appetite, and decreased endurance. Symptoms of reduced platelets mainly involve bleeding, which can manifest as bleeding of the skin and mucous membranes, organ bleeding, and even cerebral hemorrhage. Tumor infiltration can manifest as gingival hyperplasia and skin rashes among other swellings.