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Diabetes symptoms: When diabetes symptoms are a concern

Weight loss

When you lose sugar through frequent urination, you also lose calories. Along with dehydration, this can cause rapid weight loss. That's especially true in people who have type 1 diabetes. But it also can happen in some people with type 2 diabetes. People newly diagnosed with diabetes may gain some weight right away as a result of better hydration. Then over time, because less sugar is being lost in urine, weight gain may continue unless steps are taken to prevent it.