Diabetic neuropathies have several non-specific signs and symptoms that are also caused by other conditions. Therefore, diabetic neuropathy can go undiagnosed and untreated. Symptoms include numbness and tingling (paresthesia) in the fingers and toes, pain in the lower legs and feet, foot ulcers, lightheadedness/dizziness when standing up, erectile dysfunction, and gastrointestinal issues such as nausea, bloating, heartburn, diarrhea, and constipation.[1][2] The signs are revealed with diagnostic tests showing poor nerve function (e.g., inability to sense a pinprick), impaired sensations (e.g., inability to distinguish hot from cold), orthostatic hypotension (a drop in blood pressure when standing up), resting tachycardia (high resting heart rate), and delayed gastric emptying (gastroparesis).[1][2]
What are the main signs and symptoms of diabetic neuropathy?
Written by:
Fact-checked
by:
•Last Updated: May 16, 2025
Diabetic neuropathy occurs with nonspecific symptoms such as numbness, tingling, pain in the legs and feet, gastrointestinal issues, and erectile dysfunction, which can lead to misdiagnosis. Diagnostic tests may reveal poor nerve function, impaired sensations, orthostatic hypotension, resting tachycardia, and delayed gastric emptying.