When Type 2 Needs Insulin
Reviewed by CDE Mehandi Sharma · Updated
Many people hear the word insulin and assume they have done something wrong. That is worth clearing up.
Type 2 diabetes changes over time. The cells in your pancreas that make insulin gradually produce less, and this happens regardless of how carefully you eat. When tablets can no longer make up the difference, insulin is added because your body genuinely needs the help — not because you failed to follow instructions.
Insulin is also used temporarily in some situations, such as during pregnancy, around surgery, or during a serious illness or hospital stay. In those cases it may be stopped again afterwards.
What changes in practice? You will usually start with one injection a day of a long-acting insulin, often at bedtime, with the dose adjusted over a few weeks based on your fasting readings. Modern pen devices use very fine needles, and most people are surprised by how little it hurts.
You will also need to check your blood sugar more often, because insulin can cause low blood sugar in a way most tablets do not. Learning to recognise and treat a low becomes part of the routine.
If you are anxious about starting, say so plainly at your appointment. It is a common conversation.