What causes high levels of lead in the body?

High levels of lead in the body may result from long-term exposure to lead-containing environments, ingestion of lead-contaminated substances, lead poisoning, iron-deficiency anemia, chronic kidney disease, and other conditions. If symptoms such as abdominal pain, dizziness, or fatigue occur, or if lead levels remain consistently elevated, prompt medical attention is necessary.

1. Long-term exposure to lead-containing environments: Living near lead-processing factories, residing in older homes decorated with lead-based paint, or frequently coming into contact with lead-contaminated materials can allow lead to enter the body through the respiratory system or skin, leading to elevated lead levels. This may be accompanied by dizziness and difficulty concentrating. It is recommended to move away from lead-exposed environments as soon as possible, regularly clean living spaces, avoid contact with suspected lead-containing items, and reduce ongoing lead intake.

2. Ingestion of lead through diet: Regularly consuming food contaminated with lead, drinking tap water delivered through lead pipes, or using lead-glazed tableware can introduce lead into the body via the digestive tract, increasing lead levels. This may be associated with loss of appetite and abdominal pain. It is advisable to adjust dietary habits, reduce consumption of high-lead foods, use certified safe tableware, drink filtered tap water, and minimize routes of lead ingestion.

3. Lead poisoning: When excessive lead is ingested, it accumulates in the body and damages systems such as the nervous and digestive systems, resulting in elevated lead levels. Symptoms may include abdominal pain, vomiting, numbness in limbs, and difficulty concentrating. Under medical supervision, patients may take medications such as calcium disodium edetate injection, succimer capsules, or dimercaprol injection to alleviate symptoms.

4. Iron-deficiency anemia: When the body lacks iron, intestinal absorption of lead increases, leading to higher lead levels. This condition is often accompanied by pallor, fatigue, dizziness, and palpitations, which can disrupt normal metabolism. Under medical guidance, medications such as ferrous succinate tablets, ferrous fumarate granules, or iron dextran injection may be used to relieve symptoms.

5. Chronic kidney disease: Impaired kidney function reduces the body's ability to excrete accumulated lead, causing lead levels to rise. This may present with edema, abnormal urine output, and fatigue, while further burdening the kidneys. Follow medical advice to use medications such as Yuduqing granules, Shenshuaining capsules, or sodium bicarbonate tablets to manage symptoms.

Daily care should emphasize food hygiene; increase intake of foods rich in calcium, iron, and vitamin C; undergo regular testing for body lead levels; and prevent children from contacting lead-containing items through proper protective measures.