Lump On Inner Thigh Near Groin: What Causes It, Remedies And How To Prevent It

A lump in the inner thigh near the groin could be a cyst, swollen lymph nodes, hernia, or saphena varix. Check out the remedies and prevention tips here.

Lump On Inner Thigh Near Groin

A lump in the inner thigh near the groin can vary in size and shape, and it can be painless or painful. The lump can also be just a single one or it can be several lumps within the said area. The lump on the groin can stay the same color as the skin or it can turn a purple or red color. Some of these lumps can also move around. These lumps may form sores, break open, and others may even form ulcers. The appearance and the shape of a groin lump will commonly be based on what is causing the said lump. Patients with a lump in the groin are advised to seek medical assistance from their healthcare professional.

Possible Causes of Lump in the Groin

Below are some of the possible causes of a lump in the groin:


Most lumps found in the area of the groin are cysts. These are benign or lumps that are noncancerous. They can get bigger, become painful, and even lead to discomfort for the patient. A number of these lumps in the inner thigh near the groin can be an indicator of a condition that is much more serious.

Glands that are swollen

For people who are either sick or suffering from an infection, such as mononucleosis, flu, or cold, the lump in the groin may just be a lymph gland that is swollen. These (lumps) will typically occur once flare-ups of the lymph glands occur as well. These lymph glands are located in the armpits and the throat and will usually experience swelling to initiate an immune response versus foreign particles and bacteria. The lymph nodes that are swollen will usually resolve once the illness subsides. Infections that genitourinary may also lead to the lymph nodes in the groin area becoming swollen or inflamed. 


This condition can feel like a large soft lump. It happens when the abdominal tissue or the intestines penetrate an open portion of the body meant to serve as an enclosure. For example, the intestines can penetrate an area in the lower portion of the abdominal wall that is weakened. A weakens or a defect in the walls of the abdomen along with strain in the muscles can lead to this. This condition will require emergency attention from a medical professional. 

STIs of Sexually Transmitted Infections

Sexually transmitted infections can lead to lumps in the groin caused by lymph nodes that are swollen. Some of these STIs are syphilis, gonorrhea, chlamydia, and herpes. Some of these infections can also lead to the formation of lump clusters that can get popped and lead to the development of sores. These STIs will need to be treated by a medical professional.

Saphena Varix

If the lump in the groin goes away once an individual lies down, it may be a condition known as Saphena Varix. This happens when the saphenous vein valve does not properly open to let the flow of blood in resulting in the accumulation of blood within the veins. The said condition can lead to the formation of lumps the size of golf balls that have a bluish shade. People suffering from varicose veins have a higher risk of developing the said medical condition. saphena varix is an extremely rare condition.

Treatment Options for Lumps in the Groin

Individuals who may notice a lump in the groin are advised to seek medical attention, which should be monitored regularly especially if the lump or its symptoms become worse. Below are some of the possible treatment options for groin lumps:

Medical care

Because groin lumps can have so many possible factors, the doctor may ask the patient certain types of questions. These questions will focus on the symptoms being experienced or the status of the health. 

The doctor will also run a series of blood tests to verify for any signs of infectious diseases. The lymph node will also be checked for swelling or inflammation. Some of the possible questions by the healthcare professional will include the following:

  1. Is the size of the lump changing?
  2. Did the lump suddenly show or did it take several days?
  3. Is the lump growing?
  4. How large is the lump?
  5. When was the first appearance of the lump?

After getting all the details needed based on the patient’s answers, the doctor may start recommending treatment based on the underlying cause of the lump groin:

  • Surgery may be recommended by the doctor to have a cyst removed if it is painful or large
  • Surgery may also be required if the cause is a hernia to help patients have their tissues placed back behind the tissue boundary.
  • Antibiotics may also be prescribed to help address infections although a lymph gland that is swollen will usually resolve on its own.

Outlook for Groin Lumps that are Untreated

As mentioned earlier, the doctor must check groin lumps immediately. While swollen glands and cysts won’t give the patient any complications that are long term, a hernia can lead to death if immediate treatment is not provided. A hernia that is incarcerated can lead to the obstruction of the bowels, which can also be quite dangerous. Obstructions such as these can lead to nausea, severe pain, and vomiting. A hernia that is strangulated, on the other hand, should be regarded as a health emergency. This is because this condition can lead to the tissues of the intestine getting trapped requiring some sort of surgical procedure. 

Groin lumps that are caused by STIs such as chlamydia and gonorrhea can result in infertility if not immediately treated. On the other hand, the STI known as syphilis can result in dementia, paralysis, and blindness.

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