Groin Lumps: When Exercise Causes Swelling and Pain - Oncology

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After exercising, the lump in the groin area becomes larger!


Hello doctor, I have had a small hard lump in my groin for several years.
Since it doesn't hurt or itch, I haven't paid much attention to it, and because it's in a private area, I was hesitant to see a doctor.
I have previously had lipomas and fibromas on my arms and legs, but they have all been surgically removed and were benign.
I am an active person, and this year I've noticed that after exercising, the lump in my groin gradually enlarges and becomes a bit red and swollen.
It started as a small lump, but after swelling, it becomes elongated, about 5 centimeters long.
When I'm not exercising, it shrinks back down and doesn't hurt.
However, when I do exercise, it enlarges and becomes painful; now I feel some discomfort while walking, but it's not too painful.
What could this be? Do I need surgery? I'm quite scared >_< Which specialist should I see?

Polly, 30~39 year old female. Ask Date: 2017/09/14

Dr. Hu Ziren reply Oncology


Hello, can I see a general surgeon or an obstetrician-gynecologist? Thank you!

Reply Date: 2017/09/14

More Info


When it comes to groin lumps that swell and cause pain after exercise, it’s essential to approach the situation with a careful and informed perspective. Based on your description, it seems you have a long-standing lump in your groin area that has recently become more pronounced and painful following physical activity. This situation warrants a thorough evaluation to determine the underlying cause and appropriate treatment.

Firstly, the lump you are experiencing could be a variety of things, including a benign lipoma (a fatty tumor), a fibroma, or even a lymph node that has become reactive due to physical activity or other factors. Given your history of having benign tumors removed, it’s understandable to be concerned about the nature of this lump. The fact that it enlarges and becomes painful after exercise suggests that it may be related to muscle strain, inflammation, or even a hernia, particularly if you are engaging in activities that put stress on the groin area.

The swelling and pain you describe could also indicate a condition known as a sports hernia or athletic pubalgia, which is characterized by pain in the groin area due to strain on the muscles and tendons. This condition often occurs in athletes and can lead to inflammation of the surrounding tissues, causing discomfort during physical activity. The fact that the lump decreases in size when you are not exercising could support this theory, as the inflammation may subside with rest.

Given the symptoms you are experiencing, it is advisable to seek medical attention. You should consider visiting a healthcare provider who specializes in sports medicine or an orthopedic surgeon. They will be able to conduct a physical examination and may recommend imaging studies, such as an ultrasound or MRI, to assess the lump and surrounding tissues more accurately. This will help in determining whether the lump is benign or if it requires further intervention.

In the meantime, it may be beneficial to modify your exercise routine to avoid activities that exacerbate the pain. Gentle stretching and strengthening exercises for the groin area, under the guidance of a physical therapist, may help alleviate some discomfort. Additionally, applying ice to the area after exercise can reduce swelling and inflammation.

If the lump is determined to be benign but symptomatic, your doctor may discuss options such as monitoring it over time or considering surgical removal if it continues to cause discomfort or if there are concerns about its nature. On the other hand, if it is found to be related to a hernia or another condition requiring intervention, your healthcare provider will guide you on the best course of action.

In summary, while it is understandable to feel anxious about the lump in your groin, seeking professional medical advice is the best step forward. Early evaluation and appropriate management can help ensure that any underlying issues are addressed, allowing you to continue enjoying your active lifestyle without discomfort. Remember, your health and well-being are paramount, and addressing these concerns with a qualified professional will provide you with the clarity and reassurance you need.

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