What a Physical Examination Is Really Checking For

Reviewed by Dr C. J. Odike, MRCGP · June 2026

A physical examination is adapted to the person, problem and urgency. It may begin while the history is still being taken. Clinicians use findings to assess severity, refine possibilities and decide whether tests or treatment are needed.

Examination and history develop together A physical examination is the clinical assessment of your body using observation, measurements and selected hands on techniques. It does not always begin after a completed history. A clinician may notice breathing, alertness, movement, colour or distress as soon as the consultation starts. History and examination then guide each other. An answer may prompt a new check, while an unexpected finding may lead to more questions. In urgent situations, observations, examination and treatment may happen at the same time. The sequence is adapted to clinical need rather than following one fixed script. Targeted does not mean narrow Most examinations focus on the current problem and the important possibilities raised by the available information. A clinician may also check general observations or another body area when this helps assess severity or identify an alternative explanation. For example, cough and fever may prompt assessment of breathing, oxygen saturation and chest sounds. The clinician may also look for confusion, dehydration or circulatory problems. This is not an unfocused search of the whole body. It is a proportionate assessment designed to answer relevant clinical questions. Common examination methods Looking means looking carefully at appearance, movement, breathing or another visible feature. Feeling means using the hands to assess features such as tenderness, temperature, swelling, pulses or the position of a structure. Percussion means tapping the body and interpreting the resulting sound or sensation. It can provide clues about air, fluid or underlying tissue. Listening means listening to internal sounds, usually with a stethoscope. Clinicians may listen to the heart, lungs, abdomen or blood flow. Examinations can also include vital signs, movement testing, strength, sensation, reflexes and other condition specific techniques. Not every consultation needs every method. Findings update probability An examination finding is a clinical sign. A sign is observed or measured by the clinician, while a symptom is experienced and reported by the patient. A finding can support one explanation, weaken another, reveal severity or identify a need for urgent action. Most findings do not confirm or exclude a diagnosis by themselves. Their meaning depends on what the person describes, the examination quality, disease stage and probability before the finding. The same sign can have several causes. Different clinicians may also vary in how reliably they detect or interpret subtle findings. What a normal finding means A normal finding can be useful because it may lower the probability of a particular problem or show no current evidence of deterioration. The amount of reassurance depends on how sensitive that examination is for the condition and when the examination occurs. A normal examination cannot guarantee that disease is absent. Some conditions are early, intermittent, internal or difficult to detect without testing. The clinical course therefore matters. A repeated examination may reveal changes that were not present during the first assessment. Consent is an ongoing process A clinician should explain why an examination is proposed and what it will involve. You should have an opportunity to ask questions before agreeing. Consent continues throughout the examination. The clinician should explain each new step, notice discomfort and stop if you ask them to stop. You can decline part or all of an examination. The clinician should explain how that decision may affect the assessment and discuss reasonable alternatives. Limited emergency or legal circumstances can alter how consent is obtained. Care should still respect the person's dignity, privacy and involvement as far as possible. Privacy, dignity and chaperones You should receive privacy to undress and dress. Only the area that needs examination should be exposed, with suitable covering where possible. An intimate examination may involve the breasts, genital area or rectum. Some people may experience other examinations as intimate because of touch, closeness or previous experiences. For an intimate examination, the clinician should offer a trained chaperone where possible and explain the chaperone's role. A chaperone acts as an impartial observer and supports a safe examination. A relative or friend can provide support but is not usually the formal chaperone. You can ask for a chaperone or support person. Availability and urgency may affect whether the examination proceeds immediately or is rearranged. Communication needs, disability, pain, culture and previous trauma can affect how an examination should be planned. These concerns should be discussed without judgement. Infection prevention matters Healthcare workers should clean their hands before and after direct patient contact. Equipment should also be cleaned or protected according to its use. Gloves are used when exposure to body fluids or certain procedures makes them appropriate. Gloves do not replace hand hygiene. These precautions protect the person being examined, staff and other patients. A cough and fever example Cough, fever and breathlessness can occur with pneumonia, bronchitis, viral infection and several non infectious conditions. A clinician may check temperature, pulse, breathing rate, blood pressure and oxygen saturation. They may inspect breathing effort and listen to the chest. Focal chest sounds, a raised breathing rate or low oxygen saturation can increase concern about pneumonia. They do not confirm the diagnosis alone. A normal chest examination does not reliably exclude pneumonia. A meta analysis found that lung listening has low overall sensitivity for acute lung disease. NICE defines a primary care clinical diagnosis of pneumonia using the combined symptoms, signs, illness severity and professional judgement. Further testing, treatment or hospital assessment depends on the whole picture. Examination findings are not used only when they contradict what the person describes. Call 999 or go to A&E for severe breathing difficulty, blue or grey lips or skin, sudden confusion, collapse, or chest tightness or heaviness. Taking part in an examination You can ask what a particular step is checking and how its result could affect the plan. Tell the clinician about pain, mobility limits, communication needs or previous experiences that may affect the examination. Ask for privacy, suitable covering, a chaperone or a support person when needed. You can ask to pause or stop at any time. This lesson explains professional physical examination. It is not instruction for examining yourself or deciding that a normal self check excludes illness.

A physical examination is an iterative clinical assessment, not a ritual or definitive test. Findings update probability and severity. Consent, privacy, dignity, infection prevention and appropriate chaperoning make the process safer.

Medical words made simple

Physical examination
A clinical assessment using observation, measurements and selected hands-on techniques to gather information about health and illness.
Clinical sign
A feature observed or measured during assessment. A sign can provide a clue but rarely establishes the diagnosis alone.
Percussion
Tapping the body and interpreting the sound or sensation to gain clues about air, fluid or underlying tissue.
Consent
A person's informed agreement to an examination. Consent continues throughout and can be withdrawn.
Intimate examination
An examination involving intimate body areas or one that a person experiences as intimate because of touch, exposure or closeness.
Chaperone
A trained impartial observer who supports a safe examination and remains present throughout the relevant examination.
Oxygen saturation
An estimate of how much haemoglobin is carrying oxygen. It is one observation and must be interpreted with the whole assessment.

Quick recap

  • History and examination develop together, and urgent assessment may begin before the history is complete.
  • A targeted examination can include general observations and checks for important alternative explanations.
  • looking, feeling, percussion and listening are common methods, but they are not the only examination techniques.
  • Normal and abnormal findings update probability and severity but usually do not confirm or exclude a diagnosis alone.
  • Consent is ongoing, and examinations should protect privacy, dignity and communication needs.
  • Intimate examinations should include an offered trained chaperone where possible, while hand hygiene supports infection prevention.