Medical Procedures Vocabulary in English

In medical English, a symptom is something the patient experiences and reports — such as pain, dizziness, or fatigue. A sign is something the doctor observes or measures — such as a fever, rash, or abnormal blood pressure. Both are used in diagnosis, but the distinction matters in clinical writing and OET exam contexts.

Chronic means a condition is long-lasting — it develops slowly and persists for months or years (e.g. chronic asthma, chronic pain). Acute means sudden and severe, but typically short-lived (e.g. acute appendicitis, acute infection). A condition can start as acute and become chronic if it does not resolve.

A diagnosis identifies what condition the patient has. A prognosis is the prediction of how the condition will develop — whether the patient will recover, improve, or deteriorate. Diagnosis answers "What is wrong?" Prognosis answers "What is likely to happen?" Both are essential words in clinical and academic medical writing.

Both words describe diseases that can spread from person to person. Contagious specifically means spread by direct physical contact or close proximity (touching, coughing, sneezing). Infectious is a broader term — it means caused by a pathogen (bacteria, virus, etc.) and can spread by various routes, including indirect contact or contaminated water and food.

Dosage is pronounced DOH-sij. It refers to the prescribed amount and frequency of a medicine: "The dosage is one tablet twice daily." Related terms: dose (a single amount taken at one time), overdose (taking more than the safe amount), underdose (taking less than the effective amount). Dosage is the general term for the entire schedule of doses.

Treatment is the general term for any medical care given to address a condition. Therapy is more specific — it usually refers to a structured programme aimed at improving function or well-being: physical therapy, speech therapy, cognitive behavioural therapy. All therapies are treatments, but not all treatments are therapies.

Rehabilitation (often shortened to rehab) is the process of helping someone regain function, independence, and quality of life after an illness, injury, or surgical procedure. It typically involves a team of specialists — physiotherapists, occupational therapists, speech therapists, and psychologists. Common contexts: stroke rehabilitation, post-surgical recovery, addiction rehabilitation.

Yes. The Occupational English Test (OET) is specifically designed for healthcare professionals and uses authentic medical contexts. Words like diagnosis, prognosis, specimen, inflammation, and consultation appear in OET Reading and Listening tasks. Speaking and Writing tasks require you to use clinical vocabulary accurately in patient communication contexts.

Medically, fracture and break mean the same thing — a crack or complete break in a bone. Fracture is the clinical term used in formal medical contexts and documentation. Break is more informal and conversational. You would say "He has a fractured tibia" in a medical report, but "He broke his leg" in everyday conversation.

Start with this word list and use Flash Cards for initial recall. Then read authentic medical texts such as patient information leaflets, news health articles, or medical case studies. For OET or IELTS preparation, listen to medical radio programmes or healthcare podcasts in English. Reviewing words in clinical sentences reinforces both meaning and correct usage.