Low hemoglobin can be a physiologic phenomenon or can be caused by a variety of diseases, such as malnutrition, gastric disease, kidney disease, liver disease and chronic wasting disease.
1. Physiological causes: For women in the middle and late stages of pregnancy, as well as infants and young children, a physiological decrease in hemoglobin may occur, which is a normal phenomenon.
2. Pathologic causes:
(1) Malnutrition: some old people and extremely thin people will have low hemoglobin, which belongs to malnutrition.
(2) Gastric diseases: when suffering from certain gastric diseases such as gastric ulcer, the digestion and absorption function of the stomach will be reduced, which will lead to low hemoglobin.
(3) Kidney diseases: Some kidney diseases (e.g. nephrotic syndrome) can also lead to low protein in the blood.
(4) Liver diseases: Viral hepatitis, cirrhosis and other liver diseases can lead to a decrease in the liver’s ability to synthesize albumin, which can also lead to a decrease in the amount of protein in the blood.
(5) Chronic wasting disease: Some chronic wasting diseases such as malignant tumors will consume a lot of protein in the body, which will lead to low hemoglobin.
There may be other reasons for low hemoglobin, in the case of exclusion of physiological reasons, we need to actively target the original disease for treatment, and eat more protein-rich food.