Avastin and Breast lump - a phase IV clinical study of FDA data

Summary:

Breast lump is reported as a side effect among people who take Avastin (bevacizumab), especially for people who are female, 50-59 old, also take Zometa, and have Breast cancer.

The phase IV clinical study analyzes which people have Breast lump when taking Avastin. It is created by eHealthMe based on reports of 75,729 people who have side effects when taking Avastin from the FDA, and is updated regularly.

What is Avastin?

Avastin has active ingredients of bevacizumab. It is often used in high blood cholesterol. eHealthMe is studying from 76,365 Avastin users. Check the latest studies of Avastin.

What is Breast lump?

Breast lump (localized swelling that feels different from the surrounding breast tissue) is found to be associated with 777 drugs and 925 conditions by eHealthMe. Check the latest studies of Breast lump.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 30, 2026

75,729 people reported to have side effects when taking Avastin.
Among them, 21 people (0.03%) have Breast lump.

Among these 21 people:

What is the gender of people who have Breast lump when taking Avastin? *

female: 100 %
male: 0.0 %

What is the age of people who have Breast lump when taking Avastin? *

What are other drugs people take besides Avastin? *

What are other side effects people have besides Breast lump? *

Metastases To Liver (cancer spreads to liver): 10 people, 47.62%
Metastases To Bone (cancer spreads to bone): 10 people, 47.62%
Lymph Follicular Hypertrophy (an increase in the size of the lymph node follicles): 9 people, 42.86%
Neuropathy Peripheral (surface nerve damage): 9 people, 42.86%
Breast Cancer: 8 people, 38.10%
Dizziness: 8 people, 38.10%
Pleural Effusion (water on the lungs): 8 people, 38.10%
Osteonecrosis Of Jaw (death of bone of jaw): 8 people, 38.10%
Scoliosis (a medical condition in which a person's spine is curved from side to side): 8 people, 38.10%
Back Pain: 8 people, 38.10%

What are the existing conditions these people have? *

Breast Cancer: 6 people, 28.57%
High Blood Pressure: 3 people, 14.29%
Vaginal Bleeding: 2 people, 9.52%
Metastases To Bone (cancer spreads to bone): 2 people, 9.52%
Menopause (end of monthly cycles in women): 2 people, 9.52%
Diabetes: 2 people, 9.52%
Breast Cancer Metastatic: 2 people, 9.52%
Bone Loss: 2 people, 9.52%
Tuberculosis (a bacterial infection by mycobacterium tuberculosis): 1 person, 4.76%
Quit Smoking: 1 person, 4.76%

* Approximation only. Some reports may have incomplete information.

Do you take Avastin and have Breast lump?

- Check whether Breast lump is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Avastin:

Avastin (76,365 reports)

Breast lump treatments and more:

Breast lump (9,236 reports)

Browse all side effects of Avastin:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with Breast lump:

Breast lump (777 drugs)

Browse all the conditions that are associated with Breast lump:

Breast lump (925 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on bevacizumab (the active ingredients of Avastin) and Avastin (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.