Dr Dimple Doshi

Dr Dimple Doshi

Chocolate Cyst: ‎Types, ‎Causes, ‎Symptom, Diagnosis, ‎Treatment

The epic name; CHOCOLATE CYST; is quite suggestive. its contents resemble a melted chocolate;   The name appears sweet but the condition can be quite nasty at times and give a lot of trouble to the one having it.

It is also called ovarian endometrioma. ovarian endometrioma range from 2 to 20 cm in size.

It is  found in about 20 to 40% of women having endometriosis, and endometriosis affects about 10% of women in the reproductive age group worldwide.

Embarking on an exploration of chocolate cysts, delve into understanding their types, causes, symptoms, diagnosis, and treatments. Navigate this ovarian concern with informed insights for optimal healthcare.


Dr. Dimple Doshi at Vardaan Hospital; believes prevention is better than cure, and thus apart from the precise treatment guidelines; preventive measures are an essential part of our consultations with the patients who have either had it or want to know more about it.

Chocolate cyst are non-cancerous ; fluid filled cysts containing old blood and tissues giving it a chocolate sauce like appearance.  In most of the cases the chocolate cysts are associated with endometriosis; a condition in which the tissues which line the cavity of the uterus are also implanted somewhere else in the abdomen and pelvis.

There are two types of  ovarian endometrioma:

Type 1 chocolate cysts: They are usually small; less than 5cm ; and situated deep within the ovary.; difficult to remove.

Type 2 chocolate cysts: They are larger ; superficial and easy to remove .

Chocolate cysts mostly result from endometriosis stage 3 where the endometrium or tissue which lines the uterus from inside gets implanted on or inside the ovary and bleeds in response to the cyclical hormonal changes. This leads to blood getting collected inside the ovary; Old blood changing its color from red to chocolate.

Majority of chocolate cysts are symptomatic .

And the size of the cyst also does not affect the severity of symptoms; small cysts can cause severe symptoms while large chocolate cysts may not cause significant discomfort

Consult your gynecologist immediately if ; you have painful periods; difficulty in getting pregnant; or pain during sexual intercourse. A visit to your gynecologist  will involve:

  1. Thorough history taking
  2. Suspecting that you have endometriosis
  3. Your gynecologist may be able to feel it while doing physical examination
  4. Pelvic ultrasound
  5. Laparoscopy done to investigate the cause of infertility may reveal presence of small chocolate cystsand endometriosis

Treatment of chocolate cyst depends on :

  1. Your age
  2. Your symptoms
  3. Size of chocolate cyst
  4. Whether one or both ovaries are affected
  5. Whether you want to have children

Conservative Treatment:

If the chocolate cyst is small and not producing any symptoms; your doctor may advice you

  1. Birth control pills to control pain and growth of cysts; though it can not cure the chocolate cysts completely.
  2. GnRh agonists to control endometriosis will also control small or micro chocolate cyst.
  3. Pain killers like ibuprofen; drotaverine or naproxen may be used to control pain caused by chocolate cyst.
Chocolate cysts and endometriosis are widely known benign diseases. Only about 0.5 to 1% cases are associated with malignancy. The cancers which are associated with endometriosis are:  endometrioid  carcinoma and clear cell adenocarcinoma