Vc deficiency is a vitamin c deficiency. Early stages of vitamin c deficiency can be characterized by agitation, irritability, lethargy, loss of appetite, weight loss and pallor. If the deficiency is excessive and causes vitamin c deficiency, it may cause bleeding, gingivitis, malnutrition and even related complications. Vitamin C deficiency in the short term usually does not cause noticeable symptoms and can be regulated by giving vitamin C tablets. Long-term insufficient intake, absorption disorders, and the effects of medications that lead to vitamin C deficiency may cause vitamin C deficiency. 1. Bleeding. Typical symptoms of patients with vitamin deficiency are bleeding spots that can be found all over the body. At the beginning, patients will have bleeding spots around the gums and hair follicles, after which hematomas or bruises may form at the joints, muscle tissues, and tendon sheaths. 2. Gingivitis. Patients will have gingivitis, mainly manifested as bleeding gums, swelling, bleeding on slight pressure, individual patients will be accompanied by ulcers or secondary infection, which may lead to the loosening of the patient’s teeth in severe cases, and loss. 3. Malnutrition. Vitamin C deficiency in infants and young children may lead to loss of appetite, weight gain, anemia, etc. In severe cases, there will be moderately severe anemia, poor resistance, and susceptible to various infections. It is recommended to go to the hospital for relevant examinations, such as certain vitamin deficiencies, can be combined with the doctor’s advice to supplement.