IBLCE runs the IBCLC examination, the credential taken by people who want to be certified lactation consultants. This page gives you free practice sets by topic, worked questions with full explanations, a study plan, and the verified exam facts: 175 multiple-choice questions, a 4-hour sitting, and fees that depend on your country tier.
The IBLCE has 175 questions and takes about 4 hours[1] (International Board of Lactation Consultant Examiners (IBLCE) / IBCLC Commission, verified Oct 23, 2026).
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
According to International Board of Lactation Consultant Examiners (IBLCE) / IBCLC Commission, “The examination consists of 175 multiple choice questions. Each question has only one correct answer, and there is no penalty for a wrong answer.”[1]
The IBCLC examination is set by the International Board of Lactation Consultant Examiners and the IBCLC Commission. It is computer-based and is offered at Prometric test centres or through Live Remote Proctoring. Remote sessions are offered in English only.
The exam has 175 multiple-choice questions, and there is no penalty for a wrong answer, so answer every question. The sitting lasts 4 hours, including a 10-minute break between the two parts. Results appear in your online credential management account about 12 weeks after the end of the exam window.
Exam windows and fees:
Certification lasts 5 years, then you recertify. Eligibility routes, retake fees outside Tier 1 and any extra charges are set by the Commission and can change, so check the current fee guide and candidate information guide on the IBCLC Commission website before you apply. Our practice questions are written by us with AI tools. They are not real exam questions.
Prepare for the IBLCE - International Board of Lactation Consultant Examiners exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.
Question: What is the predominant carbohydrate in human milk?
Answer: A. Lactose
Explanation:
Lactose is the main carbohydrate in human milk. The mammary gland builds it from glucose and galactose, and it supplies much of the milk's energy.
Sucrose is table sugar from plants, and the breast does not make it. Glucose is a building block of lactose and is not the main sugar left in the milk. Maltose comes from the breakdown of starch and is not a milk sugar.
Rule to remember: when a question asks for the sugar in mammalian milk, think lactose. Questions about milk volume, osmolarity or infant digestion often rest on that same fact.
Question: Which evidence-based approach is most important when applying treatment planning principles?
Answer: C. Integrating current research with clinical expertise and patient values
Explanation:
Integrating current research with clinical expertise and patient values is the definition of evidence-based practice, so it is the best answer.
Following personal intuition alone ignores research and invites bias. Choosing the most expensive treatment confuses cost with benefit; price says nothing about whether a plan works for this patient. Relying only on textbook guidelines from any era is wrong because older guidance can be outdated, and a guideline cannot account for the person in front of you.
Rule to remember: in treatment planning, the answer that combines three inputs (best evidence, clinical judgement, patient preference) usually beats any answer that relies on a single source.
Question: During pregnancy, high levels of which hormone inhibit full lactogenesis despite rising prolactin levels?
Answer: B. Progesterone
Explanation:
Progesterone is the correct answer. During pregnancy it occupies and blocks prolactin signalling in the breast, so milk production stays limited even while prolactin rises. After the placenta is delivered, progesterone falls and full lactogenesis can begin.
Estrogen is also high in pregnancy, but the classic teaching ties the delay to the drop in progesterone after delivery. Cortisol is not the hormone that holds back lactogenesis here. Human placental lactogen is made by the placenta and is linked to breast growth, not to blocking milk production.
Rule to remember: pregnancy hormones hold lactogenesis back, and the fall in progesterone after the placenta leaves is the trigger that releases it.
Start with the official material, because it tells you what the exam expects. Read the candidate information guide and the fee and key dates page on the IBCLC Commission website, and note which exam window you are aiming for. Then work backwards from that date.
Because our questions are written by us and are not real exam items, use them to find gaps, then go back to the official sources to fill them.
The exam has 175 multiple-choice questions, and there is no penalty for a wrong answer. The standard sitting is 4 hours, which includes a 10-minute break between the two parts. It is delivered by computer at Prometric test centres or by Live Remote Proctoring.
The initial exam fee depends on your country tier: $695 USD for Tier 1 (including the US, UK, Canada and Australia), $420 USD for Tier 2 and $270 USD for Tier 3. A retake in Tier 1 countries costs $345 USD. Check the current fee guide on the IBCLC Commission website.
The listed windows are March 23 – April 1, 2027, in English only, and September 8 – 17, 2027, offered in 11 languages. Applications open 4-5 months before each window, so check the Commission's key dates page for the current opening date.
Results become available in your online credential management account about 12 weeks after the end of the exam window. The Commission publishes the details, so use your account and its official notices rather than waiting for a message from a third party.
Certification is valid for 5 years. To keep it, certificants must recertify every 5 years. The Commission sets the recertification requirements, so read the current rules on its website well before your certification is due.
No. The questions on this site are written by us with AI tools and are not real exam questions. Use them to find weak topics and practise the question style, and rely on the IBCLC Commission's official guides for what the exam covers.
How we verify: editorial & fact-checking policy. Report an error: contact us.