Sciatic & Nerve Endometriosis Treatment: nerve-sparing laparoscopic surgery in Turkey

What exactly is nerve endometriosis, and what happens to the nerve?

Nerve endometriosis is a rare form of deep infiltrating endometriosis in which endometrial-like tissue settles on or around a pelvic nerve, most often the sciatic nerve or the sacral plexus. Because this tissue responds to the menstrual cycle, it bleeds and inflames each month, irritating and compressing the nerve and, over time, causing scarring that can damage it. It can also reach the pudendal, obturator or gluteal nerves, and it almost always occurs together with endometriosis elsewhere in the pelvis. Left untreated, the disease can slowly and permanently impair nerve function, which is why early recognition matters.

Is it ordinary sciatica, or nerve endometriosis?

The single most useful clue is timing: ordinary sciatica is fairly constant, while nerve endometriosis pain follows the menstrual cycle. Women are frequently misdiagnosed with piriformis syndrome, a facet problem or "idiopathic sciatica" and pass through orthopaedics, neurology and physiotherapy before the gynaecological cause is found. The key difference is that endometriosis-related nerve pain begins or worsens around the period (cyclical sciatica) and that it almost always sits alongside endometriosis. Because the condition is rare and imitates common back and leg problems, a high level of suspicion is needed in any woman who has endometriosis and develops leg or buttock pain.

Source: European Society of Human Reproduction and Embryology (ESHRE), endometriosis guideline

Which symptoms point to nerve endometriosis?

The hallmark of nerve endometriosis is leg or buttock pain that worsens with menstruation, often together with painful periods. At first the pain tends to be cyclical, appearing with the period, but after a few months it can become constant as inflammation and scarring build up. Many women also notice tingling, numbness or weakness in the leg or foot, and in advanced disease difficulty lifting the foot or walking normally. Because these symptoms overlap with common back problems, they are easy to dismiss, yet weakness or a change in gait is a warning sign that should not be ignored.

Can it be diagnosed without surgery, and how?

Nerve endometriosis can today be suspected and mapped with imaging before any operation, though confirmation often comes at surgery. Magnetic resonance imaging (MRI), and in particular MR neurography, gives the most detailed picture of the nerve and shows where the lesion sits and how far it extends. A careful history of cyclical pain and a clinical test such as the straight-leg-raise (Lasègue) test, which reproduces pain when the leg is raised to roughly 30–70 degrees, support the diagnosis. Because the disease is hidden deep in the pelvis, the definitive answer is usually obtained at laparoscopy, where the nerve can be explored directly and the lesion removed and examined.

Source: Royal College of Obstetricians and Gynaecologists (RCOG), endometriosis information

What are the treatment options for nerve endometriosis?

There is no single treatment for nerve endometriosis; the choice depends on the severity of the pain, how much the nerve is involved and whether there is any loss of function. In broad terms there are two paths: medical treatment to suppress symptoms, and laparoscopic surgery to free the nerve and remove the lesion. Medication can help while a plan is made, but it does not remove the lesion or reverse nerve compression, so surgery becomes central when pain is severe or when weakness appears. When the nerve is being damaged, surgery should not be delayed, because lost nerve function may not fully return.

When are medication and hormonal treatments enough?

Medical and hormonal treatment can ease the pain of nerve endometriosis and may be used as a bridge, but it does not cure the disease. Painkillers, anti-inflammatory medicines and hormonal options such as the combined pill, the hormone-releasing coil (LNG-IUS) or GnRH analogues can reduce cyclical symptoms for a time. The problem is that the lesion and the pressure on the nerve remain, so symptoms usually return once treatment stops, and meanwhile nerve damage can quietly progress. For this reason we do not rely on medication alone when there is nerve compression or any weakness, and surgery is discussed openly.

Nerve-sparing laparoscopic surgery (neurolysis): who is it for?

Nerve-sparing surgery, or neurolysis, frees the affected nerve by carefully removing the endometriosis and scar tissue around it while keeping the nerve intact, and it is the preferred approach for most patients. Performed laparoscopically (keyhole), it means smaller incisions, less pain and a faster recovery than open surgery. In reported series of laparoscopic nerve release, about 80 percent of patients had a significant reduction in pain — more than half — at around 20 months of follow-up, and pain scores fell markedly, in one series from about 7.7 to 2.6 within six months. We treat nerve preservation as the priority and, where the disease also sits in the pelvis, address it in the same session.

Source: American Association of Gynecologic Laparoscopists (AAGL), minimally invasive gynecologic surgery

When is partial nerve resection needed instead?

In advanced disease, where endometriosis has grown into and partly destroyed the nerve, freeing it alone is not enough and a partial resection may be required. Removing a destroyed segment can relieve severe pain, but recovery of strength and sensation takes longer and rehabilitation is part of the plan. In these cases pain can even increase during the first 4–6 months before it improves, and meaningful recovery of nerve function may continue over several years. This is demanding surgery, which is why it is planned carefully and, where needed, together with neurosurgery.

Why does neurosurgery coordination matter so much?

Nerve endometriosis sits where gynaecology and neurosurgery meet, so it is treated most safely by a coordinated team. Freeing endometriosis from a major nerve such as the sciatic nerve or the sacral plexus demands advanced laparoscopic skill, and protecting nerve function during the dissection is the central challenge. Coordination with neurosurgery, and where available the use of intraoperative nerve monitoring, helps map the nerves and reduce the risk of injury. We see this multidisciplinary approach not as an extra but as a core part of how this surgery should be done.

Nerve endometriosis and pregnancy: can I still have children?

Nerve endometriosis itself does not directly cause infertility, but the pelvic endometriosis that almost always accompanies it can affect fertility. The reassuring point is that nerve-preserving surgery is not an obstacle to a future pregnancy, and clearing accompanying pelvic disease in the same session can improve the chance of conceiving. Age remains an important factor, so we raise the topic of children early and, where needed, plan in coordination with an IVF (in vitro fertilisation) team. The aim is always to relieve the nerve pain while protecting everything that supports a future pregnancy.

Source: American College of Obstetricians and Gynecologists (ACOG), endometriosis and pelvic pain

What is our approach to treating nerve endometriosis?

At the heart of our approach is one principle: to relieve the nerve pain while protecting the nerve and fertility, and to consider more extensive surgery only when the disease genuinely demands it. We assess each woman as a whole — her imaging, the severity of her symptoms, any weakness and her plans for children — and tailor the treatment accordingly. Where the nerve can be freed we favour laparoscopic neurolysis, we combine surgery with medical treatment when that helps, and for women who wish to conceive we coordinate the plan with an IVF team. As Associate Professor Dr. Cengiz Andan and our team, we believe that carrying the whole process through with one responsible surgeon makes a real difference to both trust and outcome.

Why does experience make a difference in this surgery?

One of the strongest factors in the outcome of nerve endometriosis surgery is the surgeon's experience, because removing disease from a nerve while preserving its function takes refined technical skill. The 18 years of experience of Associate Professor Dr. Cengiz Andan, with more than 2,000 laparoscopic operations and over 500 endometriosis procedures, reflects a high case volume in minimally invasive surgery. In experienced hands the complication rate can be kept low (around 2 percent) and nerve-preserving surgery can be carried out more safely. Even so, we want to be clear that every operation carries some risk and that results can vary from person to person.

How does recovery and the return home work?

Recovery after laparoscopic nerve endometriosis surgery is usually faster than after open surgery, although nerve symptoms can take time to settle. The hospital stay is generally 1–2 days and a return to normal daily life takes about 2–4 weeks, while improvement in nerve pain and strength can continue over several months. The question most on our patients' minds is "what if there is a problem after I go home?": complications are rare, but if one occurs we remain reachable, coordinate with your doctor at home, and handle the histology, report and follow-up remotely together. Your operation report is also prepared so you can hand it to your own doctor.

Treatment in Europe or in Turkey — what is the difference?

For nerve endometriosis surgery the difference between Europe and Turkey is not quality but access and cost. The minimally invasive techniques and international guidelines used in Europe are the same in Turkey; the gap comes from the exchange rate and lower operating costs, which lower the price rather than the standard. For many women an added difference is being able to complete the process quickly and with one and the same surgeon, instead of waiting months for an appointment and an operation.

How does the treatment process, accommodation and follow-up work from abroad?

For patients coming from abroad, the process begins with a digital assessment before travel and is completed with a short stay in Turkey. You first share your imaging (ultrasound/MRI) and reports, and discuss the treatment plan and approximate cost in an online pre-consultation. When surgery is planned, a stay of about 5–7 days in Turkey is usually enough, covering the preoperative assessment, the procedure and the first check-up. A flight is — depending on the procedure and the surgeon's approval — usually possible about 7–10 days after surgery, an interval that also reduces the risk of clots during travel.