What is the cause of weak positive urine vitamin c?

In routine urine tests, if the vitamin C content in the urine is too high to form a weak positive, the reason is mainly due to the patient taking a large amount of vitamin C, or eating vitamin-rich foods and drugs for a long time. Vitamin C is an essential vitamin for the human body. It can be ingested through drugs or food. However, if the intake is excessive, the demand is far lower than the supply. Vitamin C will be excreted through urine. Generally, it will not produce clinical symptoms and clinical consequences. However, it may lead to abnormal results in other test indicators in urine. Detailed examinations are needed. Usually, drugs or food should be ingested according to the body's needs. Do not overdose.