Corpus Luteum Cysts: Symptoms, Diagnosis, and When to Seek Help - Obstetrics and Gynecology

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Luteal cyst / Ovarian cyst


After my period on April 7, I experienced discomfort and dull pain in my lower left abdomen.
On April 27, I sought medical attention and was found to have a corpus luteum cyst.
The doctor performed an ultrasound and suspected it had ruptured, noting a small amount of pelvic fluid.
I was advised to monitor the situation and return for a follow-up, but since I am currently abroad, I plan to wait for a few menstrual cycles before returning.

After my period on May 4, the abdominal discomfort slightly eased, but I felt the dull pain shifting deeper into my pelvis/abdomen.
I took a dose of Si Wu Tang after my period.
However, after my most recent period on June 3, the discomfort in my lower left abdomen returned, accompanied by feelings of bloating in my abdomen and back.
I experience pressure pain when bending over or sitting.
Should I return for a follow-up? After the initial rupture of the corpus luteum cyst, will it grow back, or does it remain until it gradually resolves? Below are the ultrasound findings for your reference:
Left Ovary: length 2.11 cm, height 1.56 cm
Right Ovary: length 2.56 cm, width 1.04 cm, height 1.31 cm, volume 1.826 cm³
LOVCYSTL: 3.85 cm
LOVCYSTH: 2.30 cm
LOVCYSTW: 2.31 cm
Doctor's comments: Anteverted uterus of normal size, normal myometrium, normal endometrium, normal right ovary.
There was a cystic mass on the left ovary, and a small amount of free fluid was noted in the posterior cul-de-sac.
Normal blood flow to the uterus and ovaries on Doppler studies.

Thank you, doctor, for taking the time to respond!

Ms. Chen, 30~39 year old female. Ask Date: 2020/06/26

Dr. Cai Yonglong reply Obstetrics and Gynecology


A ruptured left ovarian cyst can lead to internal bleeding, resulting in the accumulation of blood in the abdominal cavity, which may cause continued bloating and pain.
However, if there are symptoms such as fever, palpitations, or worsening abdominal pain, immediate medical attention should be sought to avoid delaying treatment.

Reply Date: 2020/06/26

More Info


Understanding corpus luteum cysts is essential for anyone experiencing symptoms related to ovarian health. A corpus luteum cyst forms from the follicle that releases an egg during ovulation. After ovulation, the follicle transforms into the corpus luteum, which produces hormones, primarily progesterone, to support a potential pregnancy. If pregnancy does not occur, the corpus luteum typically dissolves. However, sometimes it can fill with fluid, leading to the formation of a cyst.

In your case, the ultrasound findings indicate a cystic mass on the left ovary, measuring approximately 3.85 cm in length, with some free fluid noted in the posterior cul-de-sac. This suggests that the cyst may have ruptured, which can occur in some cases. Symptoms of a ruptured corpus luteum cyst can include sudden, sharp pain in the lower abdomen, which may be accompanied by other symptoms such as abdominal bloating or discomfort.

The symptoms you describe, such as left lower abdominal discomfort, a feeling of pressure, and back pain, could be related to the cyst. It is not uncommon for symptoms to fluctuate with the menstrual cycle, as hormonal changes can affect the size and presence of ovarian cysts. After a cyst ruptures, it may take some time for the body to reabsorb the fluid, and new cysts can develop in subsequent cycles.

Regarding your question about whether you should return for a follow-up, it is advisable to consult with a healthcare provider if you experience persistent or worsening symptoms. While many corpus luteum cysts resolve on their own without intervention, monitoring is essential, especially if you notice significant changes in your symptoms or if the discomfort becomes more pronounced.

If you are currently abroad and unable to see a doctor immediately, consider the following guidelines:
1. Monitor Symptoms: Keep track of your symptoms, including any changes in pain intensity, the presence of new symptoms (such as fever, nausea, or vomiting), or changes in your menstrual cycle.

2. Pain Management: Over-the-counter pain relief, such as ibuprofen or acetaminophen, may help alleviate discomfort. However, consult with a healthcare provider regarding appropriate medication, especially if you have any underlying health conditions.

3. Return for Follow-Up: If your symptoms persist or worsen, or if you experience severe pain, it is crucial to seek medical attention. A follow-up ultrasound may be necessary to evaluate the cyst's status and ensure there are no complications, such as hemorrhage or torsion of the ovary.

4. Consider Future Cycles: After a corpus luteum cyst ruptures, it is possible for new cysts to form in subsequent cycles. If you notice recurring symptoms with each menstrual cycle, it may warrant further investigation.

5. Hydration and Diet: Staying hydrated and maintaining a balanced diet can support overall health and may help alleviate some symptoms.

In summary, while many corpus luteum cysts are benign and resolve without treatment, it is essential to remain vigilant about your symptoms and seek medical advice if necessary. Your health and comfort should always be a priority, and timely follow-up can help ensure any potential issues are addressed promptly.

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