1. The onset of the disease is slow, some patients have no symptoms at early stage. It's found when having blood test.  

2. Most patients have dizziness, fatigue, soreness of limbs, poor appetite, low-grade fever.

3. Most patients also suffer from symptoms such as stomatitis, otitis media, respiratory tract infection, urinary tract infection.
 
Things are serious when patients have agranulocytosis, they usually have accompanying symptoms, such as aversion to cold, hyperpyrexia, hidrosis (excessive sweat), pharyngalgia (sore throat). The patient may have rapidly progressive necrosis at the infection areas (oral cavity, throa, vagina, rectum, and anus, etc.). At ordinary times, there are bacterias hiding at these areas, once there is an inflammation, it can multiply rapidly, resulting in necrotic ulcer. And it's covered with isabelline, green, and black pseudomembrane, which may lead to secondary onset of blood poisoning, causing the death in a few days.

Symptoms of White Blood Cell Disorders in western medicine
White blood cells, also called leukocytes, are an important part of our immune system that play a vital role in defending the body from various infections. There are different types of white blood cells; neutrophils, lymphocytes, monocytes, eosinophils, and basophils. All of them are produced in the bone marrow and are found in the lymph tissues and blood. Neutrophils, eosinophils and basophils are called granulocytes. T cells, B cells and natural killer cells are types of lymphocytes. There is a definite life span of these cells; it can be 2 weeks to 3 weeks, after which they are destroyed. The number of leukocytes present in the body changes with advancing age.

Increase or decrease in the number of leukocytes in the blood, leads to different diseases and disorders of the white blood cells. Neutropenia, HIV/AIDS and lymphocytopenia are caused due to low white blood cell count, while leukemia is caused due to high white blood cell count. Because leukocytosis often results in a decrease in the number of healthy white blood cells, symptoms of leukocytosis and neutropenia can be similar. Common symptoms of these white blood cell disorders include:
Anemia
Bruising easily
Fatigue
Frequent infections

Neutropenia can also cause a dangerous condition called septic shock if a child who has neutropenia has a fever higher than 100.5 degrees. If your child has a fever, you should tell the doctor and follow his or her instructions.