1, “three more, one less” The typical performance of diabetes is to eat more food, drink more water, urinate more, and lose weight, which is called “three more, one less” symptoms. However, there are only a few people with typical diabetes “three more and one less” symptoms, and many people with diabetes start and seek medical attention with other manifestations. 2, the wound does not heal after a long time Diabetes due to increased blood sugar, the body’s resistance is reduced, bacteria are easy to grow. If there is a wound easily infected, repeated changes of anti-inflammatory treatment is ineffective, and does not heal over time. Therefore, the wound does not heal for a long time people should check the blood sugar, to exclude the existence of diabetes. 3, brown spots appear in front of the shin This syndrome is mostly seen in light diabetic patients, mainly manifested as oval brown spots on the skin of the front of the calf, accompanied by mild depressed atrophy. About 10% of them can be combined with diabetic neuropathy. 4, vision loss Diabetes can affect vision in many ways. Hyperglycemia can lead to sudden changes in the lens of the eye, making the human body see things clearly. Long-term hyperglycemia can also cause retinal vascular sclerosis and exudate bleeding in the fundus of the eye, leading to retinopathy and blurred vision. In addition, hyperglycemia itself can induce cataracts and affect vision. 5, itchy skin About 10% of early diabetic patients can have generalized or restricted itchy skin, and more stubborn. Female patients may have mycosis or trichomonas vaginitis due to diabetes, causing vulvar itching. If blood sugar is not checked and not lowered, vulvar itching will not be cured repeatedly. 6, numbness and pain in the extremities Symmetrical numbness and pain in the skin of the lower limbs and feet, pins and needles, burning sensation, ants and other sensory abnormalities, such as exclusion of osteophytes, rheumatism, rheumatoid diseases, to consider suffering from diabetes. 7, hypertension, hyperlipidemia, gout Hyperglycemia, hypertension, hyperlipidemia, hyperuric acid (gout), fatty liver, collectively known as “metabolic disorder syndrome”, easily occur in patients with insulin resistance such as obesity, and easily appear in the same patient at the same time or successively. Therefore, patients with hypertension, hyperlipidemia, hyperuric acid (gout), fatty liver, and even stroke and coronary heart disease should be screened for blood glucose and alerted to the occurrence of diabetes. Some of these abnormalities are symptoms of diabetes itself, while others are manifestations of diabetic complications. Those who have many of these manifestations should seek early medical attention to detect diabetes early and treat it early to avoid serious complications.