Endometrial or uterine polyps are soft, fingerlike growths that develop in the lining of the uterus (the endometrium). They develop because of excessive multiplication of the endometrial cells, and are hormonally dependent, so that they increase in size depending upon the estrogen level. They can usually be detected on an ultrasound scan if this is done mid-cycle, when estrogen levels are maximal, but are easily missed if the scan is not done at the right time of the menstrual cycle. Polyps are an uncommon but important cause of infertility, because they can easily be removed during hysteroscopic surgery.

Fig 1. Uterine polyp as seen during hysteroscopy

Fig 2. Uterine polyp seen during ultrasound scan after infusion of saline which outlines the polyp in the cavity
© Dr. Aniruddha Malpani and Dr. Anjali Malpani www.drmalpani.com
Credits: How to Have a Baby: Overcoming Infertility