Progesterone's Role in Early Pregnancy and Ovarian Cysts - Obstetrics and Gynecology

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The function of progesterone?


Hello, I am currently pregnant for the first time, approximately six weeks along.
In the early stages, I experienced brown discharge and had a day of bleeding.
After visiting the doctor, I was prescribed medication to support the pregnancy, but I have not taken it because I am concerned about harming the fetus.
A week later, I went for an ultrasound, and the doctor said the embryo is growing and told me not to worry.
Later, I was prescribed progesterone (Moresafe Tablets 5mg, Alleystrenol).
I would like to know if this medication has any side effects.

Additionally, three months ago, I was diagnosed with chocolate cysts on both ovaries, approximately 4 to 5 cm in size.
Will this affect the growth of the fetus? I would appreciate your help in answering these two questions.
Thank you!

Linda, 20~29 year old female. Ask Date: 2002/09/11

Dr. Wang Hanzhou reply Obstetrics and Gynecology


Moresafe is specifically prescribed for patients undergoing threatened abortion, so there are no major concerns.
Chocolate cysts do not affect fetal growth.

Reply Date: 2002/09/11

More Info


Understanding the role of progesterone in early pregnancy and the implications of ovarian cysts, particularly chocolate cysts, is crucial for expectant mothers. Progesterone is a vital hormone that plays a significant role in maintaining pregnancy, especially in the early stages. It is produced by the corpus luteum after ovulation and is essential for preparing the uterine lining for implantation of the embryo. If the pregnancy is established, progesterone helps to maintain the uterine environment, preventing contractions that could lead to miscarriage.

In your case, experiencing brown discharge and some bleeding during the first six weeks of pregnancy can be concerning, but it is not uncommon. Many women experience light spotting, and it does not always indicate a problem. Your doctor has prescribed Moresafe Tablets (Alleystrenol), which is a form of progesterone. This medication is often used to support early pregnancy, especially in cases where there is a risk of miscarriage due to low progesterone levels.
Regarding your concern about potential side effects of Moresafe, it is generally considered safe for use during early pregnancy when prescribed by a healthcare provider. The benefits of maintaining adequate progesterone levels often outweigh the risks, especially if there is a history of pregnancy complications. However, as with any medication, it is essential to follow your doctor's advice and report any unusual symptoms or concerns.

Now, concerning the chocolate cysts (endometriomas) you mentioned, these are a type of ovarian cyst associated with endometriosis. They can vary in size and may cause discomfort or pain, but they typically do not directly affect fetal development. The presence of chocolate cysts is more about the mother's health and comfort rather than the baby's growth. In most cases, these cysts do not interfere with pregnancy unless they cause significant complications, such as rupture or torsion.

It is important to monitor the size and symptoms associated with these cysts during pregnancy. Regular ultrasounds can help track their status. If the cysts remain stable and do not cause pain or other issues, they are unlikely to pose a risk to the developing fetus.

In summary, progesterone plays a crucial role in supporting early pregnancy, and medications like Moresafe can be beneficial in maintaining pregnancy in women with low progesterone levels or those experiencing early pregnancy complications. Chocolate cysts, while they may require monitoring, typically do not impact fetal growth. Always maintain open communication with your healthcare provider, who can provide personalized advice and reassurance based on your specific situation. Your health and the health of your baby are the top priorities, and your doctor is the best resource for navigating any concerns you may have during this time.

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