Diaphragmatic Endometriosis Surgical Treatment

A rare but serious form of endometriosis affecting the diaphragm—the thin muscle separating your chest from your abdomen. Here is everything you need to know, explained clearly by one of India’s leading endometriosis specialists.

Endometriosis is a chronic condition where tissue resembling the uterine lining grows outside the uterus. In most patients, this occurs within the pelvis.

However, in a smaller subset of women, particularly those with advanced or deep disease, endometrial deposits can travel to less common sites—including the diaphragm.

The diaphragm is the dome-shaped muscle beneath your lungs that assists with breathing.

When endometriosis affects this muscle, the condition is referred to as diaphragmatic endometriosis. It represents one of the rarest locations for extra-abdominal endometriosis.

The disease can be present in two ways: as a superficial peritoneal deposit on the surface of the diaphragm or as a deeper nodule penetrating the diaphragmatic muscle itself.

The muscular (deep) variety tends to be more symptomatic and clinically significant.

One of the most challenging aspects of diaphragmatic endometriosis is that its symptoms are frequently dismissed or attributed to digestive disorders. Unlike pelvic endometriosis, the symptoms here do not primarily involve menstrual pain, making it easy to overlook.

Patients with this condition commonly report the following:

• Persistent Hiccups: Unexplained hiccups, especially those that recur cyclically, can be a direct sign of diaphragmatic irritation.

• Irregular Digestion: Bloating, discomfort, or unpredictable digestive patterns that don’t respond to standard gut treatments.

• Altered Satiety: Feeling unusually full quickly or experiencing an abnormal sensation of stomach fullness that is disproportionate to food intake.

• Altered Bowel Sensation: A changed or distorted feeling of bowel emptying that is not explained by bowel disease alone.

Diagnosis requires a combination of clinical suspicion, imaging, and direct surgical inspection. No single test is sufficient on its own.

Once diaphragmatic endometriosis is confirmed, treatment is not optional. Unlike some superficial peritoneal lesions that may be managed conservatively, diaphragmatic endometriosis requires surgical excision in all cases.

Why Is Surgery the Only Definitive Option?

Medical treatments—including Dienogest, GnRH analogues (such as Lupride injections), and other hormonal therapies—do not eliminate endometriotic nodules from the diaphragm.

At best, they suppress symptoms temporarily. Once medication is stopped, the lesions persist, and symptoms return. For this specific location, medication is not a long-term solution.

The surgery is performed laparoscopically or with robotic assistance. The key steps include:

• Full mobilisation of the liver—The liver is carefully moved to allow direct, unobstructed access to the underside of the diaphragm where the lesion is located.

• Complete excision of the nodule—The entire endometriotic deposit is removed, not just reduced or ablated. Incomplete removal risks persistence of disease.

• Reconstruction of the diaphragm — For smaller defects (approximately 1 cm or less with adjacent fibrosis), the diaphragmatic muscle is sutured closed using Prolene or PDS sutures. For larger defects, a soft (double) mesh is used to reinforce and reconstruct the area.

• Coordinated anesthetic management—Because the diaphragm is a thin muscle, any excision creates a temporary opening. The anaesthetic team decompresses the lung during this phase to protect the pleura (the lining of the lung) from injury.

• Placement of a subcostal drain—A drain is placed at the end of surgery and is typically removed after 48 hours.

Recovery from diaphragmatic endometriosis surgery, when performed at a high-volume specialist centre, is typically smooth and well-managed.

• A subcostal drain is placed during surgery and remains in for approximately 48 hours, after which it is removed.

• Most patients experience significant relief from pre-surgical symptoms—including digestive irregularities, persistent hiccups, and altered satiety—following recovery.

• Recurrence at the treated diaphragmatic site is very uncommon after complete surgical excision.

• Post-operative care includes standard endometriosis recovery protocols, and the patient is monitored for any pulmonary (lung-related) complications given the proximity of the surgery to the pleura.

A note on expectations: Full recovery timelines vary based on whether concurrent pelvic or bowel procedures were performed at the same time.

Your surgical team will provide a personalised recovery plan based on the extent of your surgery.

Diaphragmatic endometriosis is not a condition that can be adequately treated at a general gynaecology centre.

Its rarity, anatomical complexity, and the need for coordinated surgical and anaesthetic management mean that outcomes are directly dependent on the experience of the treating team.

Patients travelling from across India and internationally seek care at Shree IVF Clinic, a specialist endometriosis centres in Mumbai, where high surgical volumes translate into safer procedures, better outcomes, and lower recurrence rates.

FAQs About Diaphragmatic Endometriosis