Inflammatory Breast Cancer: Causes, Symptoms, and Treatment
Medically reviewed by Achuta Uppu, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Inflammatory Breast Cancer?
An oncologist, a doctor who treats cancer, usually leads care for inflammatory breast cancer. A breast surgeon, a doctor who operates on the breast, often helps too. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is inflammatory breast cancer?
Inflammatory breast cancer, or IBC, is a type of breast cancer in which cancer cells block the lymph vessels in the skin of the breast. This causes the breast to look red and swollen. It is a rare, fast-growing type of breast cancer. It makes up 1% to 5% of all breast cancers. Most cases are invasive ductal carcinomas. These start in cells that line the milk ducts of the breast and then spread beyond the ducts.
Symptoms
IBC usually does not form a lump you can feel. Symptoms include:
- A pink, reddish purple, or bruised look to the skin of the breast
- Dimpling or ridges on the skin that look like an orange peel
- A rapid increase in breast size
- A feeling of heaviness, burning, or tenderness in the breast
- A nipple that turns inward
- Swollen lymph nodes under the arm or near the collarbone
These symptoms generally come on rapidly. They may also be signs of other problems, such as an infection or an injury. Mastitis is an infection of the breast that has symptoms similar to those of inflammatory breast cancer.
Causes and who gets it
The cause of inflammatory breast cancer is unknown. Other risk factors are the same as for other types of breast cancer. IBC is often diagnosed at a younger age. It is more common in Black women than in White women. It is also more common in women with obesity than in women at a healthy weight.
How doctors diagnose it
IBC is usually diagnosed after a person goes to the doctor because of symptoms. It usually cannot be seen on a mammogram. Your doctor may do a physical exam, including a clinical breast exam. Your doctor may also do imaging tests, such as a mammogram, breast ultrasound, or breast MRI.
If breast cancer is suspected, a biopsy is done. In a biopsy, small pieces of breast tissue are removed and looked at in the lab for cancer cells. For suspected IBC, this often includes a punch biopsy of the breast skin that is abnormal. The cancer cells are also checked for hormone receptors and HER2 protein, which may help plan treatment. Inflammatory breast cancer is either stage III or stage IV when it is diagnosed. If the cancer has spread to distant parts of the body, it is stage IV.
Treatment
How IBC is treated depends on its stage and other factors. IBC grows quickly and is more likely to come back after treatment. So you may receive more treatment for a longer time than people with other types of breast cancer.
For stage III, treatment usually starts with chemotherapy to try to shrink the tumor. Immunotherapy or a targeted drug may be given along with it. If the tumor shrinks enough, surgery follows to remove the cancer. This surgery is a mastectomy plus removal of the underarm lymph nodes. Breast-conserving surgery is not a good option, because IBC affects so much of the breast and skin. After surgery, radiation therapy is given, and often other treatments like more chemotherapy, hormone therapy, and targeted drugs.
Stage IV IBC has spread to other parts of the body. It is typically treated with some combination of chemotherapy, hormone therapy, targeted drugs, and immunotherapy. Which treatments are used depends on the characteristics of the cancer cells.
When to see a doctor
If you have any of these symptoms, contact your doctor for evaluation. IBC may develop and progress quickly, so contact your doctor about new breast redness or swelling. Your doctor might suspect infection at first and treat you with antibiotics. Let your doctor know if the symptoms do not get better within about a week. Also tell your doctor if they get worse or the affected area gets larger.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either kind of doctor can do a physical exam, including a clinical breast exam, for new breast changes.
Common questions
Does inflammatory breast cancer cause a lump?
Usually not, because IBC usually does not form a lump you can feel.
Can inflammatory breast cancer be mistaken for an infection?
Yes, because mastitis, a breast infection, has symptoms similar to those of IBC. Your doctor might suspect infection at first and treat you with antibiotics.
What stage is inflammatory breast cancer when it is found?
It is either stage III or stage IV when it is diagnosed. All inflammatory breast cancers start as stage III, since they involve the skin.
Is inflammatory breast cancer common?
No, it is rare. It makes up 1% to 5% of all breast cancers.
Sources
- National Cancer Institute - Inflammatory Breast Cancer
- American Cancer Society - Inflammatory Breast Cancer
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
