If your doctor has advised a craniotomy for a brain tumor, it is natural to feel anxious. Fear of the unknown is often harder than the surgery itself. Knowing what will happen at each step, from preparation to recovery, makes the process far less intimidating.
This guide explains what a craniotomy is, why it is done, how to prepare, what happens on the day of surgery, and what to expect afterward.
What Is a Craniotomy?
A craniotomy is an operation in which the surgeon temporarily removes a small piece of the skull, called a bone flap, to reach the brain. After the tumor is treated, the bone flap is put back and fixed in place with small plates and screws.
It is the most common operation used to remove brain tumors, and it is performed under general anesthesia in most cases, or as an awake craniotomy when the tumor is near areas controlling speech or movement.
Why Is a Craniotomy Done?
The goals of surgery are to:
- Remove as much of the tumor as can be done safely
- Obtain tissue for an accurate diagnosis, including molecular testing
- Relieve pressure on the brain
- Reduce symptoms such as headache, seizures, weakness, or vision problems
- Make other treatments work better, such as radiotherapy or chemotherapy
For some benign tumors, such as many meningiomas, complete removal can be curative.
Types of Craniotomy and Related Approaches
- Standard craniotomy: a bone flap is opened over the tumor’s location
- Keyhole (minimally invasive) craniotomy: a smaller opening, used for selected tumors
- Awake craniotomy: the patient is awake during part of the surgery for brain mapping
- Image-guided (neuronavigation) surgery: uses MRI-based navigation, like a GPS, to plan and guide the approach
- Endoscopic approaches: for certain tumors, such as pituitary tumors, reached through the nose without opening the skull
Your surgeon chooses the approach based on tumor type, size, and location.
Before Surgery: How to Prepare
Tests and Evaluation
- MRI of the brain, and sometimes advanced scans such as functional MRI or tractography
- Blood tests, chest X-ray, and ECG
- Fitness assessment by the anesthesia team
- Review of your medicines, especially blood thinners, aspirin, diabetes medicines, and supplements
Practical Preparation
- Follow fasting instructions, usually nothing to eat or drink for several hours before surgery
- Take or stop medicines only as advised
- Stop smoking and alcohol well before surgery, as they delay healing
- Arrange for a family member to stay with you
- Ask all your questions beforehand, and make sure you understand and sign the consent form
Hair
Only a small area of hair is usually shaved around the incision, and sometimes none at all. Your team will explain this beforehand.
The Day of Surgery: Step by Step
- Admission and checks: you are admitted, and the team confirms your identity, scans, and consent.
- Anesthesia: you are put to sleep, and you will not feel or remember the procedure (unless it is an awake craniotomy).
- Positioning: your head is held steady with a special head holder.
- Incision and bone flap: a cut is made in the scalp, and a section of bone is lifted to expose the protective covering of the brain.
- Reaching the tumor: using a surgical microscope and navigation, the surgeon carefully approaches the tumor.
- Tumor removal: the tumor is removed in stages, while protecting normal brain and vital structures. Nerve monitoring may be used.
- Closure: the bone flap is secured back in place, and the scalp is closed with stitches or staples.
Surgery typically lasts 3 to 6 hours, though it can be shorter or longer depending on the tumor. Your family is updated once it is over.
Right After Surgery
- You wake up in the recovery room and are then monitored in the ICU or high-dependency unit, usually for 1 to 2 days.
- A CT or MRI scan is often done soon after surgery to check the extent of removal and rule out bleeding.
- You may have a drip, a urinary catheter, and sometimes a surgical drain for a short time.
- Headache, drowsiness, nausea, and swelling or bruising around the eyes are common and usually settle within days.
- Pain medicines, anti-seizure drugs, and steroids (to reduce swelling) are often given.
Hospital Stay
Most patients stay about 3 to 10 days. During this time:
- You start sitting up, eating, and walking with help
- Physiotherapy begins early, along with speech or occupational therapy if needed
- Wound checks are done daily
- Stitches or staples are generally removed around 10 to 14 days
- Pathology results are discussed once available, which can take several days to a couple of weeks
Possible Risks and Complications
Craniotomy is performed routinely and safely, but like any major surgery it carries risks. Your surgeon will discuss your individual risk. Possible complications include:
- Bleeding or blood clot in the brain
- Brain swelling
- Infection of the wound or brain coverings
- Seizures
- Temporary or permanent weakness, speech, vision, or memory problems, depending on tumor location
- Leakage of brain fluid (CSF)
- Blood clots in the legs
- Reactions to anesthesia
- Tumor that cannot be completely removed or that grows back
Most patients do not experience serious complications, and the team takes many precautions to reduce these risks.
Recovery at Home
First Few Weeks
- Fatigue is the most common problem and can last weeks.
- Headache and incision tenderness gradually improve.
- Keep the wound clean and dry, and avoid scratching it.
- Walk daily, but avoid heavy lifting, straining, and strenuous activity.
- Do not drive until your surgeon permits it.
- Take medicines exactly as prescribed and never stop anti-seizure medicines suddenly.
Following Weeks and Months
- Energy and concentration steadily improve.
- Many patients return to light activity or desk work within 6 to 12 weeks.
- Follow-up MRI is typically planned at around 2 to 3 months.
- Further treatment such as radiotherapy, radiosurgery, or chemotherapy may be advised, based on the pathology report.
- Rehabilitation continues if needed.
Complete recovery varies and can take several months to a year.
Warning Signs After Surgery
Contact your doctor or go to the emergency department if you have:
- A seizure
- Severe or worsening headache
- Repeated vomiting
- Fever, or redness, swelling, or discharge from the wound
- Clear fluid leaking from the wound, nose, or ear
- New or worsening weakness, numbness, speech difficulty, or confusion
- Increasing drowsiness
Emotional Wellbeing
Anxiety before and after surgery is normal. Many patients also feel low, irritable, or worried about scan results. Share your feelings with your family and your doctor. Counseling and support groups can help, and your care team can guide you to them.
Frequently Asked Questions
Is craniotomy a safe surgery?
Yes. It is a well-established operation, and outcomes are good when performed by an experienced team. Risks depend on the tumor’s size and location and on your overall health.
Will I be awake during the surgery?
In most cases no, as you will be under general anesthesia. Awake craniotomy is used only for selected tumors near speech or movement areas.
Will my head be completely shaved?
Usually not. Often only a small strip or patch around the incision is shaved.
Will there be a scar?
Yes, but it is usually hidden beneath the hair and fades with time.
How long will I be in the hospital?
Typically 3 to 10 days, depending on the surgery and recovery.
When can I go back to work?
Often in 6 to 12 weeks for desk jobs, and longer for physically demanding work.
Will the bone be put back?
Yes. The bone flap is fixed back with small titanium plates and screws. In rare situations it may be left out temporarily and replaced later.
Will I need more treatment after surgery?
Not always. It depends on the final pathology. Benign tumors may need only follow-up scans, while others require radiotherapy or chemotherapy.
How can I help my recovery?
Eat well, rest, walk daily, follow medication instructions, attend all follow-ups, and ask for help when needed.
Conclusion
A craniotomy for a brain tumor is a major operation, but it is also a well-established and carefully planned one. Understanding each stage, from preparation and surgery to recovery and follow-up, helps you approach it with confidence. With an experienced surgical team, good rehabilitation, and strong family support, most patients make steady progress and return to their routines.
If you or someone you love has been advised a craniotomy, take the time to ask questions and, if you wish, seek a second opinion. Being informed is one of the best ways to feel in control.
Book a Consultation
To discuss your scans, surgical options, or a second opinion, schedule an appointment with Dr. Saket through drsaketneuro.com.