### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi, I am 23 years old, I have a 4 month old little girl!! I noticed when i was around 30 weeks pregnant i had a lump in my left breast.. I asked my gyno and she said it was milk build up (something to that extent) i still have the lump!! I am getting a little nervous, i dont want it to be cancer.. I know my percent of having breast cancer at my age in very little!!! It doesnt hurt to touch but it does make me sick when i feel it!!! please help!!!

### output:

Hello, and I hope I can help you today. Is understandable to be nervous about having a lump in your breast at any age. You are correct in your knowledge that breast cancer under the age of 30 is extraordinarily rare, however any lump in the breast that is present for more than short period of time really should be evaluated. It is not recommended that mammograms be performed in women who are breast-feeding because the calcium in your milk can sometimes cause abnormalities on the mammogram that mimic cancer. However, ultrasound, a diagnostic test similar to that which are baby got while you are pregnant, can be performed on your breast to see if the lump is the cyst, or a solid mass. A specialist in diseases of the breast would be a reasonable person to see for this evaluation if your GUN doctor is not willing or able to properly examine you and refer you for the ultrasound. However, I do want to reassure you that most palpable lumps found in women who are pregnant or breast-feeding are due to some clogging or other issues of the milk glands and are rarely associated with cancer. I hope that I was able to adequately answer your question today, and that my advice was reassuring. Best wishes and good luck,