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25 September 2026In short: Before cosmetic surgery, a full blood count, clotting tests, biochemistry and blood group are usually requested; depending on age and health, an ECG, chest X-ray, breast imaging or pregnancy test may be added. The required tests are not the same for everyone: the surgeon and the anaesthetist decide after considering age, chronic conditions, current medication and the planned operation together.
Cosmetic operations are usually planned, non-emergency procedures. This leaves time to assess a person’s health in detail beforehand. Pre-operative tests aim to make anaesthesia and surgery safer, to detect a health problem that may have gone unnoticed and, where necessary, to postpone the operation or change the plan.
This article covers the most commonly requested tests, what each one shows, the role of the anaesthesia assessment and what is considered in people with chronic conditions. The list is general; which tests you need is decided by your physician after an examination.
Why are tests requested?
The medical history taken at the consultation (previous illnesses, operations, allergies, medication) and the physical examination form the basis of the assessment. Tests complement this information. Anaemia, for example, can make it harder to tolerate blood loss during surgery; a clotting disorder can increase the risk of bleeding; and poorly controlled blood sugar can impair wound healing and raise the risk of infection.
The current approach is to select tests individually rather than request the same long list for everyone. A limited set may be enough for a young, healthy person having a minor procedure, while an older person, someone with a chronic illness or a patient planning an extensive operation may need a broader evaluation.
Commonly requested blood tests
- Full blood count: Provides information on haemoglobin, white blood cells and platelets (blood cells involved in clotting). Anaemia, signs of infection or a low platelet count can be detected.
- Clotting tests: Tests such as PT/INR and aPTT assess how long blood takes to clot. They are especially important for people with a history of bleeding tendency or who take blood-thinning medication.
- Biochemistry: Fasting blood sugar, kidney function, liver enzymes and electrolytes (such as sodium and potassium) are checked. These values can influence both the choice of anaesthetic drugs and recovery.
- Blood group: Determined for more extensive operations where blood loss is possible, so that blood can be prepared if needed.
- Infection markers: Tests for hepatitis B, hepatitis C and HIV may be requested depending on the institution’s policy and the individual situation.
- Additional tests: HbA1c (average blood sugar over recent months) for people with diabetes or thyroid tests for those with thyroid disease may be needed.
Some blood tests must be taken on an empty stomach. Follow the instructions you are given on how long to fast before the test and whether to take your regular medication.
ECG, chest X-ray and imaging
An electrocardiogram (ECG) records the electrical activity of the heart; it is short and does not hurt. It is usually requested above a certain age and for people with heart disease, high blood pressure or a history of palpitations; the physician decides when it is necessary.
A chest X-ray is not routine for everyone. It may be requested for smokers, people with chronic lung disease, those who have recently had a respiratory infection or in selected cases based on examination findings.
Before breast surgery (augmentation, reduction or lift), a breast ultrasound and/or mammogram may be requested depending on age and risk factors. The aim is to see whether there is any finding in the breast that needs to be assessed before the operation. For women of childbearing age, a pregnancy test may be carried out before surgery if pregnancy is possible.
| Test | Purpose | Usually requested for |
|---|---|---|
| Full blood count | Assess anaemia, infection and platelet level | Before most operations |
| Clotting tests | Assess bleeding tendency | Before most operations; especially with blood thinners |
| Biochemistry | Check blood sugar, kidney, liver and electrolytes | According to age, conditions and the extent of surgery |
| ECG | Screen heart rhythm and possible heart problems | Above a certain age or with cardiovascular risk factors |
| Breast imaging | Evaluate breast tissue before surgery | Planned breast surgery, depending on age and risk |
The anaesthesia assessment
Before operations under general anaesthesia or sedation (a sleep-like state induced by calming medicines), the anaesthetist evaluates the patient separately. The discussion covers any problems with previous anaesthesia, anaesthesia-related problems in the family, allergies, snoring and sleep apnoea (repeated pauses in breathing during sleep), teeth and airway structure, and current medication.
The anaesthetist also reviews the test results to plan the type of anaesthesia and the fasting period before surgery. Additional tests or another specialist’s opinion may be requested if needed. This meeting is also a good opportunity to ask any questions you have.
Chronic conditions, medication and habits
For people with diabetes, high blood pressure, heart, lung or thyroid disease, or a clotting disorder, an opinion (consultation) may be sought from the specialist who manages the condition. The aim is to determine whether the condition is sufficiently controlled for surgery. If it is not, postponing the operation may be the right decision for the person’s safety.
- Medication: Blood thinners, some painkillers, hormone-containing medicines and herbal supplements can affect the risk of bleeding or clots. Report all medicines and supplements you take, and stop none of them on your own; only under your physician’s guidance.
- Smoking: It impairs circulation and wound healing. Stopping before and after surgery should be planned with your physician.
- Previous reports: Bringing earlier test results, discharge summaries and medication lists to the consultation can avoid unnecessary repetition. How long results are considered valid depends on the institution and the individual situation.
Frequently Asked Questions
Which blood tests are done before cosmetic surgery?
A full blood count, clotting tests (PT/INR, aPTT), biochemistry and, for more extensive operations, blood group are usually requested. Depending on the institution’s practice, tests for hepatitis B, hepatitis C and HIV may be added. Conditions such as diabetes or thyroid disease may call for additional tests. Your personal list is decided by your physician after the examination and anaesthesia assessment.
Is an ECG needed before every cosmetic operation?
No, it is not mandatory in every case. An ECG is usually requested above a certain age, for people with heart disease, high blood pressure, palpitations or chest pain, or before extensive operations. For young and healthy people, the physician assesses whether it is needed based on the planned operation and type of anaesthesia.
Is a mammogram necessary before breast surgery?
Evaluating the breast tissue before breast surgery is recommended; a breast ultrasound, a mammogram or both may be requested. The choice depends on age, family history of breast disease and examination findings. If imaging shows something that needs further assessment, the operation may be postponed until that finding has been clarified.
How long are pre-operative test results valid?
There is no single period. Validity depends on the institution’s practice, the person’s health and the type of test. If you have had a new illness in the meantime, your medication has changed or some results were borderline, repeat tests may be requested. Bringing your most recent results to the consultation makes this assessment easier for your physician.
Will surgery be cancelled if a test result is abnormal?
Not every abnormal value means the operation will be cancelled. In some cases surgery can be planned after additional tests, a specialist’s opinion or a short course of treatment. If a problem such as anaemia or poorly controlled blood sugar is found, correcting it first and postponing surgery may be the safer choice. The decision is made jointly by the surgeon and the anaesthetist.
For more on the anaesthesia process, you can read the Anaesthesia Information and Face and Neck Lift pages, and to book a preliminary consultation in Kayseri, please use the Contact page.
This article is for informational purposes only; a physician’s examination is required for diagnosis and treatment.




