Are Mid-Pregnancy Uterine Contractions Normal? Your Concerns - Obstetrics and Gynecology

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Is it normal to experience uterine contractions during the second trimester of pregnancy?


I am currently 22 weeks pregnant and often feel my abdomen hardening.
It doesn't hurt and is not very regular, but it can last for a long time, especially in the morning when I wake up.
During my prenatal check-up, the doctor mentioned that this is not ideal and advised me to rest in bed and take medication to support the pregnancy.
However, I have been experiencing this since weeks 17 to 18 without any other discomfort.
I went to the hospital for monitoring, and there were no signs of contractions.
Is this normal? I am very concerned about the risk of preterm labor.
This is my first pregnancy, and honestly, I can't tell if this is uterine contractions.
Could you provide me with a clearer answer? Thank you.

fion, 20~29 year old female. Ask Date: 2005/12/11

Dr. Li Guanghan reply Obstetrics and Gynecology


Hello: Experiencing contractions at 22 weeks is indeed early.
Occasional irregular, painless contractions are unlikely to cause preterm labor.
However, if you suddenly experience persistent, regular contractions accompanied by pain, you should promptly go to the emergency room.
This response is for reference only; for a definitive answer, please consult your obstetrician.
Hsinchu City Hospital, Department of Obstetrics and Gynecology.

Reply Date: 2005/12/11

More Info


It's completely understandable to feel anxious about experiencing hardening of the abdomen during your pregnancy, especially as a first-time mother. At 22 weeks, many women begin to notice various sensations in their bodies as their pregnancy progresses, including what you describe as your belly feeling "hard." This phenomenon can often be attributed to Braxton Hicks contractions, which are sometimes referred to as "practice contractions."
Braxton Hicks contractions are generally considered a normal part of pregnancy. They can start as early as the second trimester and are usually irregular, infrequent, and not painful. These contractions help the uterus prepare for labor by toning the muscles and promoting blood flow. They may feel like a tightening or hardening of the abdomen and can last anywhere from a few seconds to a couple of minutes. Many women report that these contractions are more noticeable in the morning or after physical activity, which aligns with your experience of them being strongest upon waking.

However, it's crucial to differentiate between Braxton Hicks contractions and true labor contractions. True labor contractions are typically regular, progressively stronger, and associated with other symptoms such as lower back pain, pelvic pressure, or changes in vaginal discharge. If you are experiencing contractions that are painful, regular, or accompanied by any concerning symptoms (like bleeding or a significant change in fetal movement), it is essential to seek medical attention immediately.

Your healthcare provider's recommendation for bed rest and medication suggests they are taking a cautious approach to ensure your well-being and that of your baby. While Braxton Hicks contractions are common, if your doctor has advised you to rest and monitor your symptoms, it’s important to follow their guidance. They may have specific concerns based on your medical history or the results of your monitoring.

In terms of your worries about preterm labor, it's good to be vigilant. Preterm labor is defined as labor that occurs before 37 weeks of pregnancy. Signs of preterm labor can include regular contractions, lower back pain, pelvic pressure, and changes in vaginal discharge. Since you mentioned that monitoring showed no signs of contractions, this is a positive indication. However, if you continue to feel uncertain or if your symptoms change, don’t hesitate to reach out to your healthcare provider for further reassurance or evaluation.

In summary, while the sensations you are experiencing may be normal, it is essential to remain in close communication with your healthcare provider. They can provide personalized advice based on your specific situation. If you have any further concerns or if your symptoms change, please seek medical advice promptly. Your health and peace of mind are paramount during this exciting yet sometimes overwhelming time.

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