The dangers of anemia include decreased immunity, weakness, impact on the cardiovascular system, impact on the digestive system, impact on the nervous system, and poor development.
1. Decreased immunity: This is mainly reflected in the decrease of cellular immunity and phagocytosis of white blood cells, thus leading to a decrease in resistance to diseases.
2. Weakness: anemia may lead to muscle ischemia, and thus patients may experience a decrease in muscle tone, resulting in a persistent decrease in endurance activities.
3. Affect the cardiovascular system: Anemia may lead to ischemia of the cardiovascular system, so patients may have symptoms such as shortness of breath after activity, and some patients with severe anemia may also have symptoms such as angina pectoris and heart failure, with edema of the lower limbs and electrocardiogram changes during examination.
4. Affect the digestive system: Anemia may lead to ischemia of the digestive system, so patients may have symptoms such as loss of appetite, abdominal distension, nausea, constipation, etc. Severe anemia patients may also have mild enlargement of the liver and often have a feeling of pressure and pain.
5. Affecting the nervous system: Anemia may lead to insufficient blood supply to the brain, so patients may experience dizziness, headache, tinnitus, blurred vision, lack of concentration, slow reaction, numbness of hands and feet, etc. In severe cases, fainting or even confusion may occur, especially in elderly patients.
6. Poor development: Mild anemia in children does not affect development, but severe anemia in children may lead to poor development, such as low weight.
If the above symptoms appear, you should go to the hospital and take appropriate treatment in time.