Diabetes self-test methods: 1. frequent urination, urination, often feel thirsty, drink more, urinate more. 2. always hunger, eat more, but weight suddenly drop for no reason, the day see thin. 3. vision loss, blurred vision, there are always flying mosquitoes in front of the eyes. 4. wounds difficult to heal, skin easily infected, and the affected area is slow to heal. 5. foot pain and paralysis. 6. dry, itchy skin. 7. Always have a sense of fatigue, weakness, hair dizziness, and easy to sweat. If you have the above individual symptoms, you need to pay great attention to them and go to the hospital to check and confirm the diagnosis as early as possible, so that you can prevent the problem before it happens and not take it lightly.