Groin Lumps: Causes and When to Seek Medical Help

Hard lump connecting the inner thigh under the groin?

Hello doctor, over the past 2 to 3 days, I have noticed swelling in the area where my thigh connects to my groin, about 2 centimeters in size.
I'm not sure if it's a hard lump.
The day before, I squeezed out some pus mixed with blood, but after that, I couldn't squeeze it anymore, and it still appears swollen and hard.

Hao, 30~39 year old female. Ask Date: 2021/09/19

Dr. Hu Ziren reply Oncology

It may just be an abscess or other folliculitis; it will either drain on its own once it matures or be absorbed by the body.

Reply Date: 2021/09/19

More Info

When it comes to groin lumps, it's essential to understand that they can arise from various causes, and their nature can significantly influence the appropriate response. Based on your description of a 2 cm lump in the groin area, which has been associated with the expulsion of pus and blood, it is crucial to consider several potential causes and the necessary steps to take.

Possible Causes of Groin Lumps
1. Inguinal Hernia: This occurs when a portion of the intestine protrudes through a weak spot in the abdominal muscles. While hernias are typically painless, they can sometimes present as a lump in the groin area.

2. Lymphadenopathy: Swollen lymph nodes can occur due to infections, inflammation, or malignancies. Infections in the lower body, sexually transmitted infections, or systemic infections can cause lymph nodes in the groin to swell.

3. Abscess: The presence of pus suggests that you may have an abscess, which is a localized collection of pus due to infection. Abscesses can be painful and may require drainage and antibiotics.

4. Sebaceous Cyst: These are non-cancerous lumps that can form under the skin when sebaceous glands become blocked. They are usually painless unless infected.

5. Lipoma: A lipoma is a benign tumor made of fat tissue. These are generally soft and movable and are not usually associated with pain or infection.

6. Infection or Inflammation: Conditions such as folliculitis or cellulitis can cause localized swelling and may be associated with pus formation.

When to Seek Medical Help
Given your symptoms of a lump that has expelled pus and blood, it is advisable to seek medical attention promptly. Here are specific indicators that warrant immediate medical evaluation:
- Persistent or Increasing Size: If the lump continues to grow or does not resolve, it is essential to have it evaluated.

- Pain or Discomfort: If the lump becomes painful or tender, this could indicate an infection or other complications.

- Fever or Systemic Symptoms: The presence of fever, chills, or other systemic symptoms suggests a more serious infection that may require urgent care.

- Changes in Skin Color: Redness, warmth, or swelling around the lump can indicate an infection.

- Difficulty Moving: If the lump affects your mobility or causes discomfort when walking, it is crucial to seek help.

What to Expect During a Medical Evaluation
When you visit a healthcare provider, they will likely perform a physical examination and may order additional tests, such as:
- Ultrasound: To assess the characteristics of the lump and determine if it is solid or fluid-filled.

- Blood Tests: To check for signs of infection or other underlying conditions.

- Culture: If there is drainage, a sample may be taken to identify the causative organism and guide antibiotic treatment.

Conclusion
In summary, while groin lumps can arise from various benign and serious conditions, your symptoms of pus and blood suggest an infection that requires medical evaluation. Early intervention can prevent complications and ensure appropriate treatment. Do not hesitate to seek medical attention to address your concerns and receive the necessary care.

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