Which statement about tubal transport problems is supported by the material?

• A. They can be caused by chronic PID and prior abdominal events such as rupture or surgery
• B. They are only caused by genetic factors
• C. They are not influenced by infections
• D. They are solely due to age

Answer: (A)

Tubal transport relies on normal tubal patency, ciliary function, and muscular contractions to move the ovum and embryo toward the uterus. Chronic PID and prior abdominal events cause scarring and adhesions in the tubes, which distort their anatomy and disrupt movement. This damage impairs the tubal epithelium and peristaltic activity, leading to delayed or blocked transport—a common mechanism of tubal-factor infertility. Infections are a major driver of such tubal damage, so they influence tubal transport. Genetic factors alone and age are not the primary causes. Therefore, the statement that tubal transport problems can be caused by chronic PID and prior abdominal events such as rupture or surgery is best supported.