Name a common infection that may require antibiotic treatment during pregnancy.

A urinary tract infection (UTI) is indeed a common infection that may require antibiotic treatment during pregnancy due to the physiological changes that occur in a woman's body during this time. As the uterus expands, it can put pressure on the bladder, reducing its capacity and making it more difficult to completely empty it. This condition increases the risk of bacteria remaining in the bladder, which can lead to a UTI.

Pregnant women are particularly susceptible to UTIs for various reasons, including hormonal changes that can affect the urinary tract and diminished immune response. If left untreated, a UTI during pregnancy can progress to a more serious condition, such as pyelonephritis, which poses risks both to the mother and the developing fetus.

Treatment with appropriate antibiotics is usually safe for both the mother and the fetus, and is essential for preventing complications. This context highlights the importance of recognizing and treating infections like UTIs during pregnancy to ensure the health of both the mother and the baby.