The price needed to check trace elements is 60 RMB. Trace elements are checked at different levels of hospitals at different rates, generally at a tertiary care hospital the fee is 60 RMB. Instead of drawing blood from a vein, a fingertip blood test is usually sufficient. Trace elements usually include calcium, iron, magnesium and so on. Calcium deficiency can lead to rickets, chondromalacia or osteoporosis, so it is important to increase sunlight exposure as well as drink more calcium-rich foods such as milk. In addition, zinc deficiency can lead to loss of taste and affect the development of hair as well as the development of the nervous system, so you can increase foods such as oysters or take zinc-containing drugs, and iron deficiency can lead to iron deficiency anemia.