Diabetes mellitus is a group of conditions in which the body does not use or make insulin properly, raising blood glucose.
Main types include type 1, type 2 (most common in adults), gestational diabetes, and less common forms classified clinically.
What is diabetes (educational)
Educational content only. Not medical advice. See a qualified clinician.
Suggested reading path
- What is diabetes (educational)
- Diabetes symptoms: educational overview
- Diabetes tests: educational overview
- Type 2 diabetes symptoms
Seek emergency care if
Confusion, persistent vomiting, severe chest pain, fainting, or very rapid breathing — go to emergency care now.
When to seek care →See a doctor or qualified health professional
Sources and references
- World Health Organization (WHO) — diabetes mellitus
- American Diabetes Association — patient education resources
- CDC — diabetes basics (public health education)