Iron deficiency in diet: All iron in the body comes from food, and good dietary sources include meat, fish, eggs and green leafy vegetables. If there is iron deficiency in the diet, ferritin will be low.

Chronic bleeding or excessive blood loss: such as menstrual bleeding or intestinal bleeding, can be caused by ulcers, colon polyps or cancer and hemorrhoids.

Iron deficiency anemia: Iron deficiency anemia is a common cause of low ferritin. If poor eating habits, chronic diarrhea or other related diseases lead to insufficient iron intake and malabsorption, the chances of iron deficiency and iron deficiency anemia will increase.

Eat more iron-containing food;

The highest iron content in animal blood is about 340 mg, and the highest absorption rate is 10% ~ 76%. Pig liver and other animal livers contain 25 mg of iron, bovine liver contains 9,0 mg, and lean pork contains 2.4 mg, and the absorption rate is as high as 7%. The iron content of egg yolk is also high, but the absorption rate is only 3%. Other foods with high iron content are sesame 50 mg, mustard 12 mg, celery 8.5 mg, laver 33.2 mg, auricularia auricula 185 mg, kelp 150 mg, rice 6.7 mg, etc. They should be mixed according to different diets and conditions. It has been proved that vitamin C, meat, fructose, amino acids and fat can increase the absorption of iron, while tea, coffee, milk, eggs, vegetable acids and wheat bran can inhibit the absorption of iron. Therefore, dietary towels should pay attention to the reasonable collocation of food to increase the absorption of iron.

If you use aluminum pot at home, replace aluminum pot with an iron pot. .

Better go to the hospital.