Donating blood plasma twice a month is less harmful to the body and is almost negligible. Usually, the blood volume of the body can be restored to normal within two hours, but some people may have symptoms of anemia due to their own weakness. 1, the nervous system: if the donor’s own blood circulation is poor, donating plasma twice a month, their own blood supply will be insufficient, and the corresponding nutrients will be reduced, which may have an impact on the nervous system, resulting in dizziness, dizziness, memory loss, inattention and other symptoms. 2, the skin and mucous membranes: if the body is weak, their own blood supply will be insufficient, and they cannot supply blood to the skin and mucous membranes. 2. In terms of the respiratory system: when the body is weakened, the blood supply will be insufficient, and when the blood supply to the skin and mucous membranes is not sufficient, the lips, face and nail bed will be pale and the skin will be rough; 3. 4. Cardiovascular system: When blood donors donate plasma twice a month, resulting in insufficient blood supply to the body, donors may show panic attacks and rapid heart rate; 5. Digestive system: If blood does not provide sufficient nutrients to the cells of the digestive system after plasma donation, digestive system symptoms such as bloating and changes in the number and shape of stools may occur; 6. Immune system Plasma contains proteins, immune antibodies, clotting factors and other components. Donating too much plasma can lead to a decrease in immunity and make you susceptible to infections. There are many benefits of plasma donation, such as promoting the hematopoietic function of bone marrow and reducing the incidence of cardiovascular and cerebrovascular diseases, but care should be taken not to donate too often or too much. China’s blood donation law stipulates that the time interval between two blood donations should be greater than six months. Therefore, it is important to donate blood in daily life in strict accordance with the national regulations to avoid causing damage to oneself.