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Learn about your asymmetrical breasts, including causes and common questions. Or get a personalized analysis of your asymmetrical breasts 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.

Asymmetrical Breasts Checker

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Your Asymmetrical Breasts May Also be Known as:
One breast is larger than the other
Uneven breasts

Top 10 Asymmetrical Breasts Causes

  1. 1.Scoliosis

    Scoliosis causes a sideways curve of your backbone, or spine. Scoliosis is most common in late childhood and the early teens, when children grow fast.

    You do not need treatment as most curves are mild. However checkups with your physician may be needed to see if there are any changes, which at that time may require a brace or if more severe, surgery.

    Rarity:
    Common
    Top Symptoms:
    shortness of breath on exertion, spontaneous back pain, asymmetrical shoulders, asymmetrical breasts, back deformity
    Urgency:
    Wait and watch
  2. 2.Viral (Norovirus) Infection

    Noroviruses are a group of related viruses that leads to nausea, vomiting, diarrhea, and cramps. These viruses cause gastroenteritis, an inflammation of the stomach and intestines. When the diarrhea and/or vomiting is severe, dehydration can occur. Symptoms of dehydration include a dry mouth, dizziness, urinating less frequently and dark urine.

    You can safely treat this condition at home. Make sure you drink plenty of water and fluids (Gatorade, Pediatlyte) to replace what is lost with diarrhea. If symptoms of dehydration occur or you are unable to keep down any liquids, seek care at your primary care physician or an urgent care.

    Rarity:
    Common
    Top Symptoms:
    fatigue, abdominal pain (stomach ache), nausea, headache, stomach bloating
    Symptoms that always occur with viral (norovirus) infection:
    hidden: gastroenteritis symptoms
    Symptoms that never occur with viral (norovirus) infection:
    severe abdominal pain, throbbing headache, severe headache, tarry stool
    Urgency:
    Self-treatment
  3. 3.Non - Specific Breast Pain

    Breast pain is either related to menstruation (cyclic) or not (noncyclic). It is common in pre-menopausal women and can also be a side effect of contraceptives that contain hormones like the pill, anticonceptive injections and intra-uterine devices.

    Unless the pain is unbearable or there is a lump, a doctor will likely just reassure you that things are okay. Some women are treated with Danazol if the pain is severe or persistent.

    Rarity:
    Common
    Top Symptoms:
    breast pain, breast swelling, armpit pain
    Symptoms that always occur with non-specific breast pain:
    breast pain
    Urgency:
    Primary care doctor
  4. 4.High Prolactin Hormone Level

    Hyperprolactinemia is a common hormonal disorder in which there are higher than normal levels of prolactin in the blood.

    You should visit your primary care physician to discuss symptoms and treatment options.

    Rarity:
    Common
    Top Symptoms:
    vaginal bleeding, headache, irregular period, decreased sex drive, enlargement of breasts
    Urgency:
    Primary care doctor
  5. 5.Intraductal Papilloma

    Breast problems such as lumps are very common and often not caused by breast cancer. An intraductal papilloma is such a benign breast lump situated in the milk ducts.

    All new breast lumps should be examined by a doctor to determine if further testing is needed, so the best thing to do is to make an appointment with your primary care physician.

    Rarity:
    Uncommon
    Top Symptoms:
    breast lump, painful breast lump, painless breast lump, white or clear fluid leaking from the breast, nipple lump
    Symptoms that never occur with intraductal papilloma:
    armpit lump
    Urgency:
    Primary care doctor

    Asymmetrical Breasts Checker

    Take a quiz to find out why you’re having asymmetrical breasts.

    Take a quiz
  6. 6.Breast Abscess

    A breast infection is an infection in the tissue of the breast. Breast infections are usually caused by a common bacteria, Staphylococcus aureus, found on normal skin.

    You should visit your primary care physician to confirm the diagnosis and discuss treatment options. This can include a detailed history, physical exam, breast ultrasound, pain relievers, antibiotic therapy and a surgical consultation.

    Rarity:
    Rare
    Top Symptoms:
    nausea, breast pain, fever, chills, severe breast pain
    Symptoms that always occur with breast abscess:
    breast pain, hidden: cardinal sign breast inflammation
    Urgency:
    Primary care doctor
  7. 7.Polycystic Ovary Syndrome

    Polycystic ovary syndrome is a common hormone disorder characterized by irregular period, acne, and fertility issues.

    You should visit your primary care physician to discuss your symptoms.

    Rarity:
    Common
    Top Symptoms:
    vaginal bleeding, fatigue, pelvis pain, painful periods, depressed mood
    Symptoms that always occur with polycystic ovary syndrome:
    oligo/amenorrhea or hyperandrogenism
    Urgency:
    Primary care doctor
  8. 8.Breast Cyst

    A breast cyst is a fluid-filled sac (like a tiny balloon) inside the breast. Breast cysts are common in women. They might cause a little pain, but they are usually benign (not cancerous).

    You should visit your primary care physician within the next 24 hours to evaluate the lump. Diagnosis typically just involves a physical exam and imaging. A biopsy would be needed in case scarier things need to be ruled out, but it's not always necessary. Treatment of a cyst involves aspirating the contents of the cyst (sucking the stuff out).

    Rarity:
    Common
    Top Symptoms:
    breast pain, breast lump, painful breast lump, movable breast lump
    Symptoms that always occur with breast cyst:
    breast lump
    Symptoms that never occur with breast cyst:
    armpit lump, fever
    Urgency:
    Primary care doctor
  9. 9.Fibroadenoma

    Fibroadenomas are solid, noncancerous breast tumors that occur most often in adolescent girls and women under the age of 30. You might describe a fibroadenoma as firm, smooth, rubbery or hard with a well-defined shape.

    You should visit your primary care physician to confirm the diagnosis and discuss treatment options.

    Rarity:
    Common
    Top Symptoms:
    breast pain, breast lump, round breast lump, movable breast lump, painless breast lump
    Symptoms that always occur with fibroadenoma:
    breast lump
    Urgency:
    Primary care doctor
  10. 10.Premature Ovarian Failure

    "Premature ovarian failure" (POF), also called "primary ovarian insufficiency" and "early menopause" happens when the ovaries stop working well too early in life. Naturally menopause occurs between the ages 45 and 55. Symptoms of menopause are changes in menstrual period, missing periods, hot flashes, mood changes and vaginal dryness.

    You should discuss your symptoms with your physician, who might take a blood test.

    Rarity:
    Common
    Top Symptoms:
    fatigue, irritability, anxiety, vaginal itch or burning, muscle aches
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Asymmetrical Breasts

  • Q.Any fever today or during the last week?
  • Q.Have you been feeling more tired than usual, lethargic or fatigued despite sleeping a normal amount?
  • Q.When was your last menstrual period?
  • Q.How long has your breast pain been going on?

If you've answered yes to one or more of these questions, check our asymmetrical breasts symptom checker.

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Asymmetrical Breasts Symptom Checker Statistics

  • People who have experienced asymmetrical breasts have also experienced:

    • 10% Breast Pain
    • 3% Vaginal Bleeding
    • 2% Nipple Discharge
  • People who have experienced asymmetrical breasts were most often matched with:

    • 25% Scoliosis
    • 7% Viral (Norovirus) Infection
    • 7% Non - Specific Breast Pain

Asymmetrical Breasts Checker

Take a quiz to find out why you’re having asymmetrical breasts.

Take a quiz