Managing Lower Back Pain During Pregnancy: Key Concerns and Tips - Obstetrics and Gynecology

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Low back pain


Hello Dr.
Huang: I am 16 weeks pregnant, but I have been experiencing persistent lower back pain.
Yesterday, I had an ultrasound during my prenatal check-up, and the doctor mentioned that the low position of the fetus is causing this issue.
Additionally, a low fetal position may lead to preterm labor, so I need to rest more and avoid overexertion.
May I ask if my blood pressure of 97/59 is considered too low? Will resting help the fetus return to a normal position? My abdomen often feels soft; if the uterus contracts, will it cause my abdomen to feel hard? I can only take muscle relaxants starting from the 18th week.
If I need to take muscle relaxants regularly in the future, will it affect the fetus?

kerhata, 20~29 year old female. Ask Date: 2006/07/11

Dr. Huang Jianxun reply Obstetrics and Gynecology


Hello: The blood pressure should be acceptable.
Sincerely, Dr.
Huang Chien-Hsun, Obstetrics and Gynecology.

Reply Date: 2006/07/11

More Info


Managing lower back pain during pregnancy is a common concern for many expectant mothers. As you are currently 16 weeks pregnant and experiencing persistent back pain, it’s important to understand the potential causes and management strategies, especially in relation to your specific situation regarding the low position of the fetus and your blood pressure readings.

Firstly, lower back pain during pregnancy can be attributed to several factors, including hormonal changes, weight gain, and the physical changes your body undergoes to accommodate the growing fetus. The hormone relaxin, which increases during pregnancy, causes ligaments to loosen, leading to instability in the pelvic region and contributing to back pain. Additionally, as the fetus grows, the center of gravity shifts, which can strain the back muscles.

In your case, the ultrasound indicated that the fetus is positioned low, which can sometimes contribute to discomfort and back pain. While a low fetal position can be concerning, especially in relation to potential preterm labor, it is not uncommon for the fetus to shift positions as the pregnancy progresses. Resting and avoiding strenuous activities can help alleviate some discomfort, but it is also essential to maintain gentle movement to prevent stiffness.

Regarding your blood pressure reading of 97/59, this is considered on the lower side, but it may still be acceptable for you, especially if you are not experiencing symptoms such as dizziness or fainting. It’s crucial to monitor your blood pressure regularly and consult with your healthcare provider if you have concerns.

You mentioned that your abdomen often feels soft, which is typical during pregnancy. However, if you experience hardening of the abdomen, it could indicate uterine contractions. It’s essential to differentiate between Braxton Hicks contractions (which are normal and often painless) and more concerning contractions that may signal preterm labor. If you notice any patterns or increased frequency of hardening, it’s advisable to contact your healthcare provider.

As for muscle relaxants, it’s understandable to be cautious about their use during pregnancy. While some medications may be deemed safe, others can pose risks to fetal development. It’s best to follow your doctor’s advice regarding the timing and necessity of any medication. Non-pharmacological approaches, such as physical therapy, prenatal yoga, or gentle stretching, can be beneficial for managing back pain without the risks associated with medication.

In summary, managing lower back pain during pregnancy involves a combination of rest, gentle movement, and possibly physical therapy. It’s essential to maintain open communication with your healthcare provider about your symptoms, blood pressure, and any concerns regarding fetal positioning. They can provide personalized recommendations and monitor your progress throughout your pregnancy. Remember, every pregnancy is unique, and what works for one person may not work for another, so finding the right balance for your body is key.

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