Which of the following symptoms could indicate preterm labor?

Persistent lower back pain can be a significant indicator of preterm labor. This type of pain is often different from the usual discomfort experienced during pregnancy and may be accompanied by other symptoms such as pelvic pressure, changes in vaginal discharge, or regular contractions. In the context of preterm labor, the lower back pain typically does not resolve with rest or positional changes, which distinguishes it from typical pregnancy-related back pain.

In contrast, occasional mild contractions may not necessarily indicate preterm labor as many pregnant individuals experience Braxton Hicks or practice contractions that are not a sign of impending labor. Frequent appetite changes and normal fetal movement are typically not associated with preterm labor. While changes in appetite can occur throughout pregnancy due to various physiological and hormonal factors, they are not specific indicators of preterm labor. Normal fetal movement generally signifies a healthy pregnancy and is not a symptom of labor.

Therefore, recognizing persistent lower back pain as a potential sign of preterm labor is essential for timely intervention and management in pregnant individuals.