A person donates 200 ml ~ 400 ml blood at a time, accounting for only 5- 10% of the total blood volume, and the blood stored after blood donation will be replenished immediately. Therefore, it will not reduce the circulating blood volume and will not affect people's health function.
How much blood donation is appropriate?
Each blood donation is generally 200-400 ml, and the interval between two blood donations should be 6 months.
What are the benefits of donating blood?
1. medical blood discount.
Free use of 5 times of blood donation within 10 years from the date of blood donation, and 2 times of blood donation after 10 years; Blood donors who donate more than 1000 ml are entitled to free blood use for life. Spouses and immediate family members of blood donors can use the same amount of blood for free within ten years from the date of blood donation.
2. Appropriate blood donation can enhance the body's immunity.
After blood donation, due to the decrease in the number of blood cells, bone marrow hematopoietic stem cells can be stimulated to produce more new blood cells and immunoglobulin, thus improving the body's resistance.
3. Proper blood donation can prevent heart disease.
A survey by the University of Kansas Medical Center found that the incidence of heart disease is twice that of blood donors.
A study in Finland showed that 2682 men aged 42-60 were followed up and found that the incidence of acute myocardial infarction was 86% lower in those who donated blood at least once in two years than in those who did not donate blood.
Free use of 5 times of blood donation within 10 years from the date of blood donation, and 2 times of blood donation after 10 years; Blood donors who donate more than 1000 ml are entitled to free blood use for life. Spouses and immediate family members of blood donors can use the same amount of blood for free within ten years from the date of blood donation.
2. Appropriate blood donation can enhance the body's immunity.
After blood donation, due to the decrease in the number of blood cells, bone marrow hematopoietic stem cells can be stimulated to produce more new blood cells and immunoglobulin, thus improving the body's resistance.
3. Proper blood donation can prevent heart disease.
A survey by the University of Kansas Medical Center found that the incidence of heart disease is twice that of blood donors.
A study in Finland showed that 2682 men aged 42-60 were followed up and found that the incidence of acute myocardial infarction was 86% lower in those who donated blood at least once in two years than in those who did not donate blood.