Read below about lump on one side of the groin, including causes and common questions. Or get a personalized analysis of your lump on one side of the groin from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

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A.I. Health Assistant Causes for Lump on One Side of the Groin

Updated on Aug. 29, 2018

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced lump on one side of the groin. This list does not constitute medical advice.

  1. 1.Groin Hernia

    A hernia occurs when a loop of intestine bulges out through the abdominal wall. With age, the supportive tissues that keep organs within the abdomen become weaker, and the risk for a hernia increases. Groin hernias, called inguinal hernias, are the most common type. They often result due to muscle straining, such as during heavy lifting.

    Groin hernias are not a life-threatening condition. Approximately one third of patients report chronic groin pain 1 year or longer after a hernia repair, but it is likely to dissipate over time. A hernia may recur, although the causes of this are highly variable, and depend on the degree of abdominal wall weakness and the technique of repair.

    Rarity:
    Uncommon
    Top Symptoms:
    pain in the lower right abdomen, pain in the lower left abdomen, groin pain, testicle pain, groin lump
    Urgency:
    Primary care doctor
  2. 2.Groin Abscess

    A groin abscess is caused by an infection of the skin or area right under the skin. The infection is typically caused by a bacteria, which your body reacts to by creating a ball of inflammation around the bacteria.

    Cured with drainage but can often come back later unless a surgeon fully removes the lining of the abscess

    Rarity:
    Common
    Top Symptoms:
    groin pain, constant groin lump, lump on one side of the groin, painful lump in one side of the groin, hard groin lump
    Symptoms that always occur with groin abscess:
    lump on one side of the groin, constant groin lump
    Urgency:
    Primary care doctor
  3. 3.Enlarged Lymph Nodes in the Groin

    Enlarged lymph nodes occur when the node becomes larger as it fills with inflammatory cells. This often is a result of an infection but can occur without a known cause.

    Enlarged lymph nodes should go away within a week or two.

    Rarity:
    Common
    Top Symptoms:
    groin lump, movable groin lump
    Symptoms that always occur with enlarged lymph nodes in the groin:
    groin lump
    Symptoms that never occur with enlarged lymph nodes in the groin:
    fever, unintentional weight loss, hard groin lump
    Urgency:
    Phone call or in-person visit
  4. 4.Skin Abscess

    A skin abscess is an infection of the deeper skin that's typically due to bacteria seen on the skin. Recently, infections are more frequently caused by Staph. Aureus (puts the "staph" in "staph infections"), which is dangerous and requires treatment.

    Good prognosis with treatment

    Rarity:
    Common
    Top Symptoms:
    rash with bumps or blisters, red rash, red skin bump larger than 1/2 cm in diameter, pus-filled rash, rash
    Symptoms that always occur with skin abscess:
    rash with bumps or blisters
    Urgency:
    Primary care doctor

    Lump on One Side of the Groin Checker

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  5. 5.Groin Hernia Requiring a Doctor's Examination

    A hernia occurs when a loop of intestine bulges out through the abdominal wall. With age, the supportive tissues that keep organs within the abdomen become weaker, and the risk for a hernia increases. Groin hernias, called inguinal hernias, are the most common type. They often result due to muscle straining, such as during heavy lifting.A complicated groin hernia, also called an incarcerated hernia, is a medical emergency. This type of hernia cannot be easily reduced, in other words pushed back without surgery. An incarcerated hernia is at high risk of becoming strangulated, meaning that pressure on the loop of bowel can cause the trapped segment to lose blood supply. Unless the blood supply is restored promptly, the tissue can rapidly die. This is a life-threatening condition.

    Complicated (incarcerated) groin hernias are a life-threatening condition. However, if treatment is performed early, the prognosis after surgery is excellent.Chronic pain 1 year out from the surgery is reported by some patients, but it is likely to dissipate over time.

    Rarity:
    Rare
    Top Symptoms:
    nausea, nausea or vomiting, fever, groin pain, groin lump
    Urgency:
    Emergency medical service
  6. 6.Indirect Hernia

    A hernia occurs when an organ or internal body part bulges through the abdominal wall. In the case of indirect hernia, the hernia is a result an improperly failed deep inguinal ring after the testicle has passed through it.

    Groin hernias are not a life-threatening condition. Approximately one third of patients report chronic groin pain 1 year or longer after a hernia repair, but it is likely to dissipate over time. A hernia may recur, although the causes of this are highly variable, and depend on the degree of abdominal wall weakness and the technique of repair.

    Rarity:
    Common
    Top Symptoms:
    groin pain, groin lump, mild groin pain, moderate groin pain, painful lump in one side of the groin
    Urgency:
    Primary care doctor
  7. 7.Lipoma

    A lipoma is a noncancerous growth of fatty tissue cells. A lipoma can develop in almost any organ of the body although they are most commonly found in the subcutaneous layer just below the skin.

    Resolves with treatment

    Rarity:
    Uncommon
    Top Symptoms:
    skin-colored groin bump, marble sized groin lump, small groin lump
    Symptoms that always occur with lipoma:
    skin-colored groin bump
    Urgency:
    Wait and watch
  8. 8.Skin Cyst

    An epidermoid cyst is a closed sac under the skin filled with a cheese-like or oily material. It is caused by trauma or surgery.

    Resolves with treatment

    Rarity:
    Common
    Top Symptoms:
    skin-colored armpit bump, marble sized armpit lump, small armpit lump
    Symptoms that always occur with skin cyst:
    skin-colored armpit bump
    Urgency:
    Wait and watch
  9. 9.Lymphangitis

    The lymphatic system is a series of vessels, similar to the veins and arteries of the circulatory system, that carry fluid important for the function of the immune system. Lymphangitis is infection or inflammation of these lymphatic vessels.

    With treatment, the swelling may take weeks or months to resolve completely.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, fever, chills, painful lump in one side of the groin, groin redness
    Symptoms that always occur with lymphangitis:
    painful lump in one side of the groin
    Urgency:
    In-person visit

Questions Your Doctor May Ask About Lump on One Side of the Groin

  • Q.What color is the bump?
  • Q.Do you feel pain when you touch the bump?
  • Q.Any fever today or during the last week?
  • Q.Is the bump hard or soft?

If you've answered yes to one or more of these questions, try our lump on one side of the groin symptom checker to find out more.

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Lump on One Side of the Groin Symptom Checker Statistics

  • People who have experienced lump on one side of the groin have also experienced:

    • 7% Painful Lump in One Side of the Groin
    • 5% Fatigue
    • 5% Pain in the Lower Right Abdomen
  • People who have experienced lump on one side of the groin had symptoms persist for:

    • 36% Less Than a Week
    • 24% Over a Month
    • 16% Less Than a Day
  • People who have experienced lump on one side of the groin were most often matched with:

    • 40% Groin Hernia
    • 40% Groin Abscess
    • 20% Enlarged Lymph Nodes in the Groin
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

A.I. Health Assistant

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