Groin Lumps: Possible Causes and Concerns

A lump felt on the left side of the groin?

Yesterday morning, I felt a sharp pain when pressing on the left groin area.
At first, I didn't think much of it, but later in the evening while showering, I noticed a lump on the left side of my groin (near the thigh root, next to the pubic hair).
The lump is approximately less than 1.5 centimeters (when I touch it), the skin surface is slightly red, and it hurts when pressed, but I don't feel anything while walking.
This sensation appeared suddenly, as if it developed overnight.
I researched online and found that it could possibly be a lipoma or lymphadenitis.
I currently have dyshidrotic eczema on the soles of my feet; although it has been taking a long time to heal with medication, it appears to be improving on the surface.
I'm unsure if this is related.
Additionally, my menstrual cycle has been very irregular, sometimes coming every 30 days and other times every 50 days, which makes me worried about the possibility of something like uterine cancer metastasizing.
What do you think is the most likely possibility? (Thank you)

Niu Niu, 10~19 year old female. Ask Date: 2016/07/16

Dr. Chen Sirong reply Oncology

19-year-old female presents with a left groin mass (near the thigh root, adjacent to the pubic hair), approximately less than 1.5 cm in size (upon palpation).
The skin surface appears slightly red, and it is painful to the touch, but there is no discomfort while walking.
The mass seems to have developed overnight, as there were no prior symptoms.
Online research suggests it could be a lipoma or lymphadenitis.
A: This is a reasonable hypothesis, but a definitive diagnosis should be made by a physician.
2.
Currently, the patient has dyshidrotic eczema on the soles of her feet.
Although treatment has been ongoing for a long time, it appears to be improving on the surface.
It is unclear if this is related to the groin mass.
A: This is unrelated.
3.
The patient reports irregular menstrual cycles, sometimes occurring every 30 days and other times every 50 days.
She is concerned about the possibility of uterine cancer or metastasis.
A: It would be advisable to consult a gynecologist for evaluation; this is likely unrelated to uterine cancer.
4.
What is the most likely diagnosis? A: Understanding your condition is far more important than focusing solely on the most probable diagnosis.
Take some time to learn about your health to truly help yourself.
Best wishes for your health, Taoyuan Hospital, Dr.
Chen Sih-Rong.

Reply Date: 2016/07/16

More Info

Understanding groin lumps can be concerning, especially when accompanied by pain and changes in skin appearance. Based on your description, the lump you felt in your left groin area, which is approximately 1.5 cm in size, tender to the touch, and slightly red, could be attributed to several potential causes.
1. Lymphadenopathy: One of the most common causes of a lump in the groin area is swollen lymph nodes, known as lymphadenopathy. This can occur due to infections, such as sexually transmitted infections (STIs), or localized infections in the legs or groin. The tenderness and redness you are experiencing could indicate inflammation or infection in the lymph nodes.

2. Inguinal Hernia: Another possibility is an inguinal hernia, which occurs when tissue, such as part of the intestine, protrudes through a weak spot in the abdominal muscles. Hernias can cause discomfort and may present as a lump in the groin area. However, they typically do not cause redness or significant tenderness unless there is incarceration or strangulation.

3. Sebaceous Cyst or Lipoma: A sebaceous cyst or a lipoma (a benign fatty tumor) could also present as a lump in the groin area. These are generally painless and mobile under the skin, but if they become inflamed or infected, they can become tender and red.

4. Folliculitis or Abscess: If there is a hair follicle infection (folliculitis) or an abscess, this could also lead to a painful lump in the groin area. These conditions are often associated with redness, swelling, and tenderness.

5. Sweat Gland Issues: Given your mention of having dyshidrotic eczema (sweat blisters) on your feet, it is worth noting that skin conditions can sometimes lead to secondary infections or inflammation in nearby areas, potentially contributing to the development of lumps.

Regarding your concerns about irregular menstrual cycles and the fear of conditions like uterine cancer, it is essential to understand that while hormonal imbalances can lead to irregular periods, they are not typically associated with groin lumps. However, if you have persistent concerns about your menstrual cycle, it would be prudent to consult a gynecologist for further evaluation.

What to Do Next:
- Seek Medical Attention: Given the tenderness, redness, and the sudden appearance of the lump, it is advisable to consult a healthcare professional for a thorough examination. They may perform a physical examination and possibly imaging studies (like an ultrasound) to determine the nature of the lump.

- Monitor Symptoms: Keep track of any changes in the lump, such as size, pain level, or any additional symptoms like fever or systemic signs of infection.

- Discuss Menstrual Concerns: When you visit your healthcare provider, discuss your menstrual irregularities as well. They may recommend hormonal evaluations or other tests to rule out any underlying issues.

In summary, while there are several potential causes for the lump in your groin, the most likely scenarios include lymphadenopathy or a benign cyst. However, only a healthcare professional can provide an accurate diagnosis and appropriate management. It’s essential to address both the lump and your menstrual concerns with a qualified provider to ensure comprehensive care.

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