Groin Lumps: Causes, Symptoms, and When to Seek Help

Inguinal mass

Hello Doctor, I noticed pain and slight swelling in my left groin area at the end of May.
I consulted a general surgeon, and the doctor performed an ultrasound, which showed two lymph nodes that appeared to be benign: one about 1 cm in the groin area and another smaller one located more towards the lower left near the pubic hair (I often feel pain in the lower area).
The doctor mentioned that it could be due to an inflammatory state in my body or an infection from a wound, and advised me to observe it for another two months.

I had a total hysterectomy over three years ago due to endometriosis (chocolate cysts), I have had hypothyroidism for many years (currently on medication), and I also have gastroesophageal reflux disease (GERD) with regular follow-ups and endoscopies.
I sometimes experience pain in the lower area, but I'm unsure if it is closer to the urethra or the bladder.
Could this pain be related to the smaller lymph node? Additionally, could the presence of lymph nodes be caused by the conditions I mentioned earlier? Thank you.

Liao Xiaojie, 40~49 year old female. Ask Date: 2022/06/19

Dr. Chen Sirong reply Oncology

Miss Liao / 46 years old / Female
Hello,
1.
Could these pains be caused by smaller lymph nodes?
A1.1 The human body has two types of pain localization:
1.1.1 Visceral pain is usually difficult to localize accurately.

1.1.2 Pain in the muscles and bones of the limbs can be accurately localized.

1.2 The groin lymph nodes should be more similar to 1.1.2, and you should be able to localize and identify whether the pain is in the lower abdomen or outside the abdomen.

1.3 Therefore, I believe you are experiencing visceral pain in the abdomen, but the exact cause is unknown:
1.3.1 Localized fibrosis and adhesions after lower abdominal surgery.

1.3.2 After surgery, the intestines may settle lower, so when the intestines hurt, you perceive it as lower abdominal pain.

1.3.3 As you mentioned, urinary tract pain and other possibilities could also be involved.

2.
Could the enlarged lymph nodes be caused by the conditions I mentioned above?
A: The groin lymph nodes should only be related to the lower body.

2.1 Lymphatic drainage from the lower limbs can lead to groin lymphadenopathy, such as cellulitis in the legs.

2.2 Inflammation of pelvic organs, such as the rectum, gynecological, or urological organs, should not have a direct relationship with hyperthyroidism or gastroesophageal reflux.

Wishing you health and happiness,
Taoyuan Hospital
Chen Si-Rong

Reply Date: 2022/06/19

More Info

Understanding groin lumps can be a complex issue, as they can arise from various causes and may present with different symptoms. In your case, the presence of swollen lymph nodes in the groin area, along with pain, raises several considerations that we can explore.

Causes of Groin Lumps
1. Lymphadenopathy: The swollen lymph nodes you mentioned are likely a response to an infection or inflammation in the body. Lymph nodes can become enlarged due to various reasons, including:
- Infections: This could be local infections (like skin infections or sexually transmitted infections) or systemic infections (like viral infections).

- Inflammation: Conditions such as autoimmune diseases can also lead to lymph node enlargement.

- Malignancy: Although less common, lymph nodes can swell due to cancer, either from a primary site or metastasis.

2. Hernias: A groin lump could also be a hernia, where tissue protrudes through a weak spot in the abdominal muscles. This is often accompanied by pain, especially when lifting or straining.

3. Cysts or Abscesses: These can form in the groin area due to blocked glands or infections, leading to localized swelling and pain.

4. Other Causes: Conditions like varicose veins or even trauma to the area can lead to swelling and discomfort.

Symptoms to Monitor
Given your history and current symptoms, it is essential to monitor the following:
- Pain Characteristics: Note if the pain is sharp, dull, constant, or intermittent. This can help in diagnosing the underlying cause.

- Changes in Size: If the lymph nodes increase in size or if new lumps appear, this should be reported to your healthcare provider.

- Associated Symptoms: Fever, night sweats, weight loss, or changes in appetite can indicate a more serious condition.

Relationship to Your Medical History
Your medical history, including endometriosis and hypothyroidism, may play a role in your current symptoms. Endometriosis can sometimes cause pelvic pain that may radiate to the groin area. Additionally, chronic inflammation from autoimmune conditions can lead to lymphadenopathy.

When to Seek Help
You should seek medical attention if:
- The lumps continue to grow or do not decrease in size after a few weeks.

- You experience persistent or worsening pain.

- You develop systemic symptoms like fever, night sweats, or unexplained weight loss.

- You notice any changes in bowel or urinary habits, especially if you suspect the pain is related to the bladder or urethra.

Conclusion
In summary, the swollen lymph nodes in your groin could be a benign reaction to inflammation or infection, but they warrant careful observation. Given your medical history, it is crucial to maintain open communication with your healthcare provider. If symptoms persist or worsen, further evaluation, including imaging or possibly a biopsy, may be necessary to rule out more serious conditions. Always trust your instincts regarding your health, and do not hesitate to seek further medical advice if you feel something is not right.

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