Your first weeks after a diabetes diagnosis

A calm, step-by-step guide to the first weeks after you learn you have diabetes: understanding your results, checking your blood sugar, medicines, food, activity and support.

6 min read · last reviewed October 3, 2026

Hearing "you have diabetes" can be a shock. Maybe it came from a routine blood test. Maybe you felt thirsty and tired for weeks. Or maybe you ended up in hospital. However you got here, the first few weeks can feel like a flood of new words, numbers and advice.

Here is the good news: diabetes is very common, and it is very manageable. Treatment has improved a lot, and most people with diabetes go on to live long, active, full lives. You don't have to learn everything this week. This guide walks you through the first steps, one at a time.

First, take a breath

Many people feel scared, guilty, angry or numb after a diagnosis. All of these feelings are normal. It's also important to know this: diabetes is not your fault. Type 1 diabetes is an autoimmune condition. Type 2 diabetes is linked to family history, genes, age, stress, sleep, some medicines and many other things outside your control.

What matters now is the road ahead. Small, steady steps add up.

Something you can do today: Tell one person you trust about your diagnosis, so you're not carrying it alone.

Week 1: Understand your diagnosis

Ask your doctor or nurse to explain, in plain words:

• Which type of diabetes you have. Type 2 is the most common in adults. Type 1 can start at any age. Diabetes in pregnancy is called gestational diabetes. Each type has its own guide on this site.
• What your test results mean. Your diagnosis was probably based on an A1C test (your average blood sugar over 2 to 3 months), a fasting blood sugar test, or a glucose drink test.
• What happens next. Who is on your team, when your next visit is, and who to call with questions.

Something you can do today: Put your care team's phone number in your phone and on your fridge.

Get connected with diabetes education

Diabetes Canada and the American Diabetes Association both recommend diabetes self-management education for everyone with diabetes, starting at diagnosis. These programs are usually run by nurses and dietitians who are certified diabetes educators. They teach you, step by step, how to check your blood sugar, take your medicines, plan meals and handle sick days. Many programs are free, and some are online.

Something you can do this week: Ask your doctor, "Can you refer me to a diabetes education program?" In many places you can also refer yourself.

Learn about checking your blood sugar

Your team will tell you if you need to check your blood sugar at home, and how often. This depends on your type of diabetes and your medicines.

• A meter uses a small drop of blood from your fingertip.
• A continuous glucose monitor (CGM) is a small sensor worn on your arm or belly that checks your sugar all day and sends readings to your phone or a reader.
• The A1C test is done at the lab, usually every 3 months at first.

What numbers should you aim for? Your team will set targets that fit you. As a guide, Diabetes Canada suggests many adults aim for an A1C of 7.0% or lower, and blood sugar of 4.0 to 7.0 mmol/L (about 70 to 126 mg/dL) before meals. Your targets may be different, and that's okay.

Something you can do today: Write down your latest A1C and ask what your target is.

Your medicines

Some people start with healthy habits alone. Many start a medicine right away. People with type 1 diabetes always need insulin.

• Take your medicines as prescribed, and ask what each one does.
• Never stop a medicine on your own. If you have side effects, call your team or pharmacist. There is often another option.
• Ask whether any of your medicines can cause low blood sugar. Insulin and some pills (such as sulfonylureas) can. If yours can, read our guide Low blood sugar: what to do.
• Ask your pharmacist before taking anything new, including cold remedies and herbal products.

Something you can do this week: Ask your pharmacist to go through your medicine list with you.

Weeks 2 to 4: Build your new routine

• Pick one food change at a time. You don't need a special diet. Try filling half your plate with vegetables, or swapping sugary drinks for water. See Eating well with diabetes.
• Move a little more. A short walk after meals can help lower blood sugar. See Moving more with diabetes.
• Make a sick-day plan. Ask your team what to do with your medicines if you get sick. See Sick-day rules.
• Book your checkups. An eye exam, kidney tests, a foot check, blood pressure and cholesterol are all part of diabetes care. See Your diabetes care team and checkups.
• If you smoke or vape, ask for help to quit. It's one of the best things you can do for your heart and blood vessels.

Something you can do this week: Choose one small change and do it most days. That's enough for now.

Take care of your feelings, too

Diabetes asks a lot of you, every day. Feeling overwhelmed is common. Talk with someone you trust, and tell your team if you feel low or worried for more than two weeks. Read Diabetes and your feelings for more ideas.

Know your warning signs

Call 9-1-1 or your local emergency number if someone with diabetes is passed out or can't swallow, has a seizure, or has signs of a serious high (throwing up, stomach pain, fruity breath, deep fast breathing or confusion). Our hub page lists all the warning signs.

Questions to ask your care team

• What type of diabetes do I have, and how do you know?
• What were my test results, and what are my targets?
• Do I need to check my blood sugar at home? How often?
• What does each of my medicines do? Can any of them cause low blood sugar?
• Have I been referred to a diabetes education program?
• Who do I call with questions, day or night?

This article is general information, not medical advice. Talk with your health care team about your own situation. In an emergency, call 9-1-1 or your local emergency number.

In an emergency, call 9-1-1 or your local emergency number.

General information, not medical advice. It does not replace your own care team. If you think you or someone else is having a medical emergency, call 9-1-1 or your local emergency number. If you are in crisis or thinking about suicide, call or text 9-8-8 (Canada and the US).

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