Why does my mother with diabetes not feel a blister that has formed?

✓ Accepted answer

Diabetic neuropathy damages peripheral nerves, causing your mother to lose protective sensation, which is why she does not feel the blister. This condition significantly elevates the risk of severe complications because minor injuries go unnoticed until they become infected.

• Protective Sensory Loss (PSL): The American Diabetes Association notes that high blood sugar damages nerve fibers over time. This prevents the brain from receiving pain or temperature signals, meaning she cannot sense friction, heat, or injury.
• Infection Risk: The CDC warns that undiagnosed foot injuries in people with diabetes can rapidly develop into ulcers. If the blister ruptures, bacteria can enter the wound, leading to serious infections or even gangrene.
• Immediate Action: Do not pop the blister yourself. Keep the area clean and dry, and cover it loosely with a sterile non-adherent bandage if it is not weeping fluid. Avoid walking on that foot to prevent further damage.
• Professional Care: You should contact her podiatrist or primary care provider within 24 hours. Given her neuropathy, medical professionals need to assess the skin integrity and check for underlying pressure points or calluses that caused the blister.
• Prevention Strategy: The NIH emphasizes the importance of daily foot inspections using a mirror. Ensure her shoes fit properly and are worn with clean, white cotton socks to minimize friction during daily movement.

admin · 2026-09-30 20:53:30