How to Inject an Insulin Pen Correctly (Step-by-Step + Bangla)

If you're new to insulin, the pen can feel intimidating — but with the right steps it's quick, safe, and nearly painless. Here's exactly how to inject an insulin pen, the mistakes to avoid, and how to rotate sites so injections stay comfortable.

বাংলা সারাংশ: নতুন নিডল লাগান → ডোজ ডায়াল করুন → পেটের চামড়ায় ৯০° কোণে ইনজেক্ট করুন → ১০ সেকেন্ড ধরে রাখুন → নিডল খুলে নিরাপদে ফেলুন। প্রতিবার জায়গা বদলান।

Important: Use only the insulin, dose, and pen your doctor prescribed. This is a general guide, not a substitute for your diabetes educator's instructions.

Insulin pen for diabetes injection in Bangladesh

Before you start

  • Wash your hands.
  • Check the insulin: right type, not expired, and (for cloudy/mixed insulin) gently roll it between your palms — don't shake.
  • Attach a new pen needle for every injection.

Step-by-step injection

  1. Attach a new needle and remove both caps.
  2. Prime the pen (air shot): dial 2 units and press until a drop appears at the needle tip. This removes air and checks flow.
  3. Dial your dose as prescribed.
  4. Choose a site: the abdomen (a few cm from the navel) is most common; thighs and upper arms also work.
  5. Inject: push the needle straight in (90°), press the plunger fully.
  6. Hold for ~10 seconds before removing, so the full dose goes in.
  7. Remove and safely discard the needle (don't reuse it).

Rotate your injection sites

Injecting the same spot repeatedly causes hard, lumpy patches (lipohypertrophy) that make insulin work unpredictably. Move each injection about a finger's width from the last one, and rotate areas (abdomen, thighs, arms). This keeps absorption steady and skin healthy.

Common mistakes

  • Reusing needles — they get blunt (more painful) and can cause skin problems.
  • Skipping the air shot — you may inject less than your dose.
  • Not holding 10 seconds — insulin can leak out.
  • Injecting into the same spot — causes lumps and erratic control.
  • Storing the pen in heat — keep insulin cool.

Keep the right supplies

You'll need pen needles regularly, and proper storage for your insulin. We deliver insulin (cold-chain), pen needles, and accessories across Bangladesh — 23 hrs in Dhaka, 48 hrs nationwide, cash on delivery. Browse the diabetes range here.

Frequently asked questions

Does an insulin pen injection hurt?
With a fresh, fine needle and the right technique, most people feel only a tiny prick. Reusing needles is the main reason injections start to hurt.

Where is the best place to inject insulin?
The abdomen is most common and absorbs reliably. Thighs and upper arms also work — rotate between sites.

Can I reuse insulin pen needles?
No. Use a new needle each time for safety, hygiene, and comfort.


General information, not medical advice. Follow your doctor's or diabetes educator's instructions on dose and technique. / এই তথ্য সাধারণ; চিকিৎসকের পরামর্শ নিন।

Order insulin & pen needles with cold-chain delivery and cash on delivery from DiabetesStore.com.bd.