Suppressed immune function means that your child’s immune system is low and susceptible to bacterial, viral, fungal and other infections. If you find that your child is particularly susceptible to colds or viral infections in recent times, parents should be aware that this may be caused by zinc deficiency. Symptom 1: Skin infections In daily life, parents should also pay extra attention to their children’s skin problems. The humid climate in summer makes it easy to breed some bacteria and viruses. At this time, if your child’s skin rash often appears, parents should not only do relative treatment, but also check the trace elements of your child to confirm whether your child is zinc deficient. Symptom 2: Xenophagia Young children with zinc deficiency may have altered taste function and have xenophagia, such as a love of eating dirt, slag, dust, etc. Although numerous studies have found that this disorder is not a direct manifestation of zinc deficiency. However, swallowing large amounts of clay and foreign objects can cause absorption of iron and zinc in the body. Once a child is found to have xenophagia, in addition to promptly helping him to change this type of problem, relevant micronutrient supplements should be administered. Symptom 3: Poor wound healing Children are very active and bumps and bruises can easily occur. Many parents find that their children do not recover easily once they find a tiny bump. If this is encountered, parents should promptly take their children to a regular hospital for relevant examination to see if their children are zinc deficient. Symptom 4: Abnormal bone development Young children with zinc deficiency have significantly lower height than normal children due to less protein synthesis in their bodies, and can seriously develop dwarfism, so parents must pay high attention to their children once they find abnormal bone development.