Your Body's Warning Signs: Experts Say Lower Limbs Can Detect Blood Sugar Issues
In a recent health awareness trend on Weibo, medical professionals have spotlighted a crucial yet often overlooked aspect of diabetes management and detection. The phrase "医生说下肢是人体自带的血糖仪," which translates to "Doctors say the lower limbs are the body's built-in blood glucose meter," has gained significant attention. This metaphorical expression, popularized by experts like Dr. Wang Fang, Chief Physician of Cardiology at Beijing Hospital, encapsulates the notion that changes in the lower limbs can serve as early warning signs of blood sugar issues, particularly related to diabetes.

19 July 2025
The lower limbs, being furthest from the heart, are especially susceptible to poor blood circulation and nerve damage caused by high blood sugar levels. Symptoms such as slow-healing wounds, persistent itching, numbness, or tingling in the legs and feet, and changes in skin color or integrity are highlighted as critical indicators of potential hyperglycemia. These symptoms, according to healthcare professionals, should not be ignored, as they can signify deeper metabolic imbalances and the onset of diabetes-related complications.
This initiative aims to empower individuals with the knowledge to recognize these physical cues, promoting earlier diagnosis and management of diabetes. By framing the lower limbs as the body's "built-in blood glucose meter," the campaign leverages a relatable and actionable concept to enhance public awareness about a condition that affects millions worldwide.
Starting in late March and continuing into May 2024, this health advisory has seen widespread sharing across social media and health forums. It underscores the importance of vigilant self-monitoring and timely medical consultation, particularly for those at risk of or already living with diabetes.
The implications of this public health message extend beyond individual health, influencing healthcare policies, technological innovations in diabetes care, and societal attitudes towards chronic disease management. As healthcare systems adapt to this paradigm, the focus on preventive care and patient education is expected to increase, potentially leading to better outcomes for individuals at risk of or living with diabetes.