Hello,
Not all blood blisters are harmful but some might be. If your mom is diabetic, help her keep the blood sugar levels under control.
1.
Diabetes may trigger blood blisters & may also cause it to get infected. 2. Blood blisters may get formed due to allergic reactions, bleeding disorders, nutritional deficiencies.
3. Blood disorders are also caused by alcohol intake, help her stay away from addictions if any.
4. Skin diseases like Melanomas may sometimes present as blood blisters. Watch for any inflammation around the blister.
Stay vigilant, it may be just a harmless blood blister, but get her physically examined by a
dermatologist to rule out any sign of Melanoma to be on the safer side. Get her investigated & treated at the earliest.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Nupur K, General & Family Physician