The symptoms of aplastic anemia include three main symptoms: firstly, infections; secondly, anemia; and thirdly, bleeding. Infections occur due to a decrease in white blood cells, especially neutrophils, resulting in poor resistance in patients making them susceptible to subsequent infections, including infections of the lungs, digestive system, urinary system, and skin and mucous membranes. Anemia occurs due to a reduction in red blood cells, causing symptoms such as dizziness, headaches, fatigue, reduced tolerance to physical activity, and poor appetite. A reduction in platelets significantly increases the risk of bleeding, especially when platelets are less than 20 times 10 to the ninth power per liter, which can lead to bleeding in the skin, mucous membranes, organs, and even cerebral hemorrhage.