Internal hemorrhoids develop when pressure builds up in the rectal veins, causing them to stretch and swell. This can happen for several reasons - straining during bowel movements, sitting on the toilet for long periods, chronic constipation or diarrhea, pregnancy, or even heavy lifting. Over time, that pressure weakens the vein walls and makes it easier for hemorrhoids to form.
Genetics and aging also play a role. As we get older, the tissues that support the rectal veins can thin, making them more prone to swelling.
Since internal hemorrhoids are located inside the rectum, they usually aren’t painful. However, symptoms may include:
Pain is rare unless an internal hemorrhoid prolapses and becomes trapped or irritated.
A proctologist can typically diagnose internal hemorrhoids with a simple exam and, if needed, a small scope to view the inside of the rectum. The good news is that most cases are treatable with non-surgical options first.
Severe or persistent cases may require minor surgical removal, but these are typically outpatient and well-tolerated.
If you notice rectal bleeding, persistent discomfort, or anything that feels “off,” it’s always best to get checked. Not every cause of bleeding or swelling is due to hemorrhoids, so a proper diagnosis is important. A proctologist can confirm what’s going on and help you find relief with personalized care.