Lump on Inner Thigh: Near Groin, In Male or Female

May 17, 2018

Discussing a health problem on, near, or around your private parts is always tricky. Take for example a condition of having a lump in your inner thigh and near your groin. Will you take such a problem to a gynecologist or a dermatologist? Actually, this can be a skin irritation or a symptom of several STDs or other diseases and conditions.

Thanks to the internet, we can find almost any information we need without going to a doctor or discussing it with a friend. However, the information you get only should not substitute a doctor’s advice. it is meant for general knowledge.

Today, I am going to discuss in detail the causes of different types of inner thigh cysts, bumps, and lumps. I will also give you some of the symptoms you may have.

Causes and treatment of a lump on the inner thigh

A lump on the inner side of your thighs could be hard or soft, itchy or not itchy, painful, or painless depending on the causes. Let us explore some of the common causes.

1. Ingrown hair cyst and treatment

A painful bump can be caused by an ingrown hair in between your thigh. An ingrown hair is the curling of hair back into the skin instead of outwards. This leads to the development of a painful pus-filled cyst in the inner thigh near the groin in both females and males should it be infected.

An ingrown hair cyst pus may be greenish or yellowish in color. These bumps cause irritation and discomfort. The condition may worsen if the cyst is infected with bacteria. An infected cyst may lead to the development of a boil in this area which is an entirely different type of problem.

  • A warm compress will increase blood circulation and reduce the inflammation of the cysts. Soak a cloth in warm water, squeeze out the excess water and press it over the cyst. This will also provide a soothing effect.
  • There are also over the counter steroid creams that usually reduce inflammation and irritation of the cysts.
  • You should avoid re-using shavers to prevent ingrown hair. Also, adopt the right shaving techniques or try other hair removal techniques, including permanent hair removal.

2. Infections and boils

Painful itchy small red lump on the upper thigh is a sign of a bacterial infection. With time the bumps will be filled with pus to form boils. The infection of the hair follicles can also cause boils on your inner thighs. Bacteria can accumulate due to sweating, which may encourage infections.

Similarly, thighs rubbing against each other can encourage these infections. In case of a boil, within a few days, the boil will break-open and drain out the pus. You may get a scab and scar on the inner thigh if this happens.

This may also spread the infection to other parts of the skin leading to recurring boils that may be very difficult to treat. Symptoms such as fatigue and fever may be reported by a patient in case of a serious infection.

  • Applying a warm compress can help treat the boil at home. To do this, you soak a clean cloth in warm water, squeeze out the excess water and then press the cloth on your boil. It is recommended that you do this at least 3 times a day until the boil drains and heals.
  • A warm sitz bath can also help reduce the inflammation.
  • Large boils may need to be drained by a doctor or a surgeon. Your doctor may also prescribe some antibiotics to treat bacterial infection and painkillers in case they are so painful.

3. Genital warts and treatments

Itchy bumps on the inner thigh in females or males could be a symptom of genital warts. On prevalence, there is what statistics state:

About 1 in 6 Americans (16.2%) aged 14 to 49 is infected with HSV-2. HSV-2 prevalence was nearly twice as high among women (20.9%) than men (11.5%) – Wikipedia

Though it mostly affects women, men can also get warts. Warts are itchy, small blood-filled bumps and may appear in clusters. Apart from this area, genital warts can grow on the vulva, vagina, and anal canal.

The HPV virus is transmitted through having sex with an infected person. The virus has been closely associated with various types of cancer.

  • There is no known cure for the HPV virus though there exists a vaccine that can protect against the virus and prevent genital warts.
  • Using a condom every time you have sex can significantly reduce the chances of contracting genital warts.

4. Jock itch

This is the main cause of blisters and inner thigh rash. Jock itch is a fungal infection caused by fungi known as a dermatophyte. The condition causes a red blister on the inner thighs around the groin area and buttocks.

It is mainly caused by lengthy exposure to moisture. This can be because of wearing sweat-soaked clothes for a long time. The condition is also highly contagious; you may get it through contact with an infected person.

  • You can get rid of Jock Itch by applying Over the counter antifungal creams.
  • You should also ensure that the affected area remains dry and clean.
  • Wearing clean cotton undergarments can prevent Jock itch.

5. Inner thigh chafing

You may get reddish painful blisters and blotches on your inner thighs and groin area due to skin rubbing against skin or cloths. Inner thigh sores due to chafing are uncomfortable and irritating. Overweight people and athletes are at a greater risk of getting this painful condition.

  • You should loose wear cotton undergarments that will wick the moisture in your groin area. Sweat contains salt which aggravates chafing.
  • You can also apply talcum powder to absorb the sweat before going out for a run or exercise. BodyGlide is also a good anti-chafing product.

6. Hemangiomas

A hard-painless lump on inner thigh could be a hemangioma or benign tumor. A hemangioma is a blood-filled non-cancerous lump that can also develop on the face, neck, and other parts of the body. They may also occur inside the skin and internal body organs.

  • Most of these lumps do not require any kind of treatment because they are not harmful. Though, surgery may be performed if the tumor is interfering with your sexual life. Your gynecologist may also recommend surgery if they find that the lump is close to the opening of the vagina and may interfere with childbirth.

Soft, painless, painful or hard lumps symptoms

As we have seen, there are some causes that will lead to hard lumps on your thighs while others will have soft ones. They could also be itchy or non-itchy, painful, or painless among other symptoms. Your symptoms will depend on what is behind the lump.

Lumps on The Groin Area

Lumps on the groin, whether soft or hard, big or small painful or painless have many causes. They can affect both men and women. Let us look at the most common causes as well as some treatments.


The groin is the area between the lower tummy and your upper thighs (where your upper thigh meets with your abdomen). It has numerous leg muscles, inguinal lymph nodes, and the inguinal and femoral canal.

Like any other part of the body, it is possible to have lumps on your groin which have several causes. Since they have different causes, these lumps have the following characteristics:

  • Have different shape, size color, and texture
  • Painful or painless
  • Single or in a be in clusters
  • Be movable or immovable (mobile or immobile)
  • Be soft or hard.
  • Big or small

Different causes will form lumps on certain characteristics which will mention while looking at their causes.

What are the common causes of Lump on Inner Thigh?

There are numerous causes of lumps on the groin, here are the most common causes:

Skin infections

Boils or abscesses are the most common type of lumps resulting from skin infections that can occur anywhere in the body including the groin.

Trauma from shaving, rubbing or friction with underwear often cause skin injury that will open a gateway for the entry of germs and consequently cause these lumps.

The resultant lumps will vary in size and severity ranging from small to medium slightly painful pimple-like bumps to very large and painful abscess.

Swollen lymph glands (lymphadenitis)

Lymph glands form part of the immune system and they help in fighting various body infections. In most cases, it is almost impossible to feel them. However, if they are swollen you can feel them as a lump or a collection of lumps.

Infections in the groin area would make the lymph glands to swell. These include sexually transmitted infections (STIs). Also, the glands can also swell because of infections that affect the all body system such as chickenpox, flu, or glandular fever.

Swollen lymph nodes due to infections will resolve after the infection has disappeared.

Enlarged blood vessels

Sometimes a vein in the groin area may become swollen, and it will feel like lumps. The swollen veins are known as varicose veins and they occur when the valve in the saphenous vein fails to open effectively to allow blood flow through.

This condition is also referred to as saphena varix. It is due to a venous deficiency which occurs due to many reasons.


A hernia occurs when internal body parts push through a weakness in the surrounding muscle or tissue wall. They usually feel like a large and soft lump. Hernias are very common in the groin area.

In some cases, a hernia would go away when you lie, however, “if the tissue inside a hernia gets stuck, it can be hard and painful. If this occurs, you should see a doctor urgently,” notes

Sexually transmitted diseases

Some sexually transmitted infections such as syphilis, gonorrhea, herpes, chlamydia, and HIV/AIDS can cause lumps in the groin area.

Firstly, they would lead to swollen lymph nodes. Secondly, certain STIs can also lead to the appearance of a single or a cluster of lumps that would break to form open sores. This would make either sitting or walking very painful.

You need a medical professional to treat and heal the STIs.

Acne or pimples

Acne or pimples can also be blamed for the lumps in this area. They occur when the hair follicles are clogged with sebum and the dead skin cells.

When the clog is not infected, you will have small bumps (whiteheads and blackheads) – mild acne. However, if the clogs are infected, you can end up with bumps that vary in size from a small pimple to pustules, nodules, and cysts that can be very large.

In addition, besides inflammation, they can be itchy or painful. Although mild cases of acne can be treated at home, severe acne may require help from your dermatologist.

Groin cancer

Cancer is another common cause. The common type of cancer lump on the groin is the lymphoma or cancer of the lymph system.

Cancer of the lymph can also come with other symptoms such as inflammation among others. This is a serious health condition that needs early diagnosis and treatment to heal it.

Other causes

Other causes include the following:

  • Allergic reaction
  • Drug reaction
  • Cysts
  • Injury to the groin
  • Lipomas
  • Warts
  • Skin Tumors (non-cancerous)
  • Undescended testicle

Having looked at the most common causes, let us look at a few characteristics of the lumps you may have on your groin and their possible triggers.

Characteristics of Lump on Inner Thigh

Small lump in the groin area

A lump in the groin can be small or large depending on the causes. A small one would still grow and become larger. In fact, in most cases, they usually begin as pea-sized bumps that later grow to huge lumps.

However, not all small lumps would grow big, some would maintain their size. Those from allergic reactions, acne, STDs, or cysts are usually small. Most of the causes we have discussed can also lead to small ones.

It is advisable not to judge their severity by just considering the size. You should visit your doctor to rule whether it is or not due to a serious health issue.

Hard lump in the groin area

These ones can affect both females and males. Possible causes include inflamed lymph nodes or a hernia. Besides being hard, they can be painful, cause inflammation, and be itchy.

Let your GP help you in knowing their exact causes.

Lump in the groin in female versus in male

Most of the causes we have seen can cause lumps in the groin areas of both males and females. The characteristics will depend on what causes them.

However, testicles and inguinal hernia are conditions that only cause groin lump in males whereas, a femoral hernia causes them female.

Finally, pregnant women tend to be prone to body lumps including the groin area. This is due to the hormonal imbalance that could interfere with body metabolic activities.

Diagnosis of Lump on Inner Thigh

Of course, before any treatment, you will need a diagnosis to establish the cause. The doctor would ask you questions and then physically examine the bumps. In some cases, the diagnosis would end there.

However, in some cases, an ultrasounds scan would be required to get more information about the lump. The scan, for instance, would help the doctor to determine the type of a hernia if this is the cause in your case.

Blood and urine tests would also be carried out to ascertain the type of infection or if diabetes is the underlying condition. On the same note, a sample of the lump can also be taken to the laboratory for further analysis, this is called a biopsy. Biopsies are important in ruling out if cancer is the cause.

Treatment for Lump on Inner Thigh

The various treatments. The choice of treatment will depend on the cause as well as the severity of the resultant symptoms.

The treatments range from home remedies to over the counter products to prescribed medications. Let us see some of the common treatments.

Home remedies for a lump on the groin.

Home remedies are only used for mild groin lumps whose cause is known or to minimize the resultant symptoms. Furthermore, should symptoms persist, it is advisable that you seek medical attention from your healthcare provider immediately?

The following are the various home remedies for the treatment you can give a try:

  1. Warm compress

Warm compresses may help to reduce the inflammations. This also relieves the pain that accompanies the inflammations.

Dip a clean towel in a hot water and apply it to the affected area. Make sure that the damp towel is not too hot to burn your skin!

  1. Gentle massages

For instance, gently massage the lymph nodes if they are swollen. When you massage the lymph nodes, you reduce the lump. This aids the lymph nodes to resume their normal functioning.

  1. Saline compresses

The saline compresses are applied in cases where the lumps have sores. Salt helps to disinfect the sores as well as drying up the wounds. It speeds up the healing process.

Over the counter treatment

There are over the counter medications that can help deal with some symptoms. Some of them will help reduce inflammation and pain. You can use ibuprofen, naproxen, and aspirin after consulting with your doctor.

Also, some drugs such as acetaminophen products available over-the-counter can only help to relieve pain caused by a lump in the groin. See your GP is the bumps persist despite the application of OTC products.

Dermatologist`s Prescription

There is no general treatment for all lumps. The treatment option depends on the underlying causes. Upon a successful diagnosis, your doctor would have many options for treatments to prescribe. This would also depend on the severity.

The dermatologist, for instance, would prescribe oral or topical antibiotics, steroids, or biotherapy. He/she may also find it necessary to recommend surgical procedures to get rid of the very stubborn lumps i.e. those due to deep cysts or severe varicose veins.

Last advice on Lump on Inner Thigh

It is advisable to see a doctor if you have an unexplained lump that does not heal on its own after a week or two weeks or if the home remedy does not help.

Also, see a physician as soon as possible if yours seems to be getting bigger and worsens. You need also to see a GP if the groin lumps are accompanied by fever, itchiness all over the body or when they are very painful.