Concerns About Breast Lumps During Pregnancy: What You Need to Know - Breast and Thyroid

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Breast issues


I am currently 31 weeks pregnant.
A few days ago, while self-examining my breasts, I suddenly felt a pea-sized hard lump at the 6 o'clock position on my right breast.
Looking back at my ultrasound from last October, there were indeed cysts at the 6 and 7 o'clock positions, but I had never felt this lump during my self-exams before.
I immediately consulted my family doctor for a visual and physical examination.
She mentioned that it seems to be breast tissue but still recommended an ultrasound scan, which I will have to wait another week for.
I am a bit worried and afraid it might be breast cancer.
Is it possible for cancer to develop in such a short time since my last ultrasound just a year ago? Thank you for your response, doctor.

Tuzi, 30~39 year old female. Ask Date: 2022/07/28

Dr. Yuan Tianmin reply Breast and Thyroid


It is reasonable to have a breast ultrasound done again after 10 months, so I recommend that you go for an ultrasound for follow-up.

Reply Date: 2022/07/28

More Info


When it comes to concerns about breast lumps during pregnancy, it is essential to approach the situation with a combination of caution and informed understanding. As you are currently 31 weeks pregnant and have recently discovered a new lump in your breast, it’s understandable to feel anxious. Here’s what you need to know about breast lumps during pregnancy, including potential causes, the importance of monitoring, and the steps you should take.

Firstly, it is important to recognize that breast tissue undergoes significant changes during pregnancy due to hormonal fluctuations. These changes can lead to the development of various types of lumps, including cysts, fibroadenomas, and other benign conditions. The lump you described, which is pea-sized and located at the 6 o'clock position of your right breast, may very well be a benign breast cyst or a fibroadenoma, especially since you have a history of cysts noted in your previous ultrasound.

While the likelihood of breast cancer during pregnancy is relatively low, it is not impossible. The risk of breast cancer does not significantly increase during pregnancy, but it is crucial to remain vigilant. The fact that you had an ultrasound just last October, which did not indicate any malignancy, is reassuring. However, it is entirely possible for changes to occur within a year, which is why your doctor's recommendation for a follow-up ultrasound is prudent.

In terms of timing, waiting a week for the ultrasound may feel like an eternity, but it is essential to avoid unnecessary panic. During this time, continue to monitor the lump for any changes in size, shape, or texture. If you notice any additional symptoms such as pain, redness, or discharge, it is important to contact your healthcare provider immediately.

Regarding your concern about the possibility of cancerous changes occurring within a short period, it is important to understand that most breast lumps during pregnancy are benign. However, if there is any suspicion of malignancy, further diagnostic procedures, such as a biopsy, may be warranted. Your healthcare provider will guide you through this process based on the ultrasound findings.

In the meantime, maintaining a healthy lifestyle during your pregnancy is crucial. Ensure you are eating a balanced diet, staying hydrated, and managing stress levels. Regular prenatal check-ups are also vital to monitor both your health and the health of your baby.

Lastly, it is essential to communicate openly with your healthcare provider about your concerns. They can provide reassurance, answer your questions, and help you understand the next steps in your care. Remember that while it is natural to worry, most breast lumps during pregnancy are benign and manageable.

In summary, while discovering a new lump in your breast during pregnancy can be concerning, it is essential to remain calm and proactive. Follow your doctor's recommendations for further evaluation, monitor any changes, and maintain open communication with your healthcare team. Most importantly, take care of yourself and your baby during this exciting yet challenging time.

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Concerns About Breast Lumps During Pregnancy: What You Need to Know

I am currently 31 weeks pregnant. A few days ago, while self-examining my breasts, I suddenly felt a pea-sized hard lump at the 6 o'clock position of my right breast. Looking back at my ultrasound from last October, there were indeed cysts at the 6 and 7 o'clock positio...


Dr. Yuan Tianmin reply Breast and Thyroid
I don't understand why I have to wait a month or a week to get an ultrasound. Currently, most outpatient clinics in hospitals allow you to walk in and get it done at any time for your reference.

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