Q. I had found a lump during self breast examination. I am 23 years old. I had found a lump during self breast examination. I didn’t have pain in my breast. I went to the doctor for checkup. Many tests were done and no treatment is prescribed. No medicines were given. I suddenly found that the lump had almost doubled in size a month after my check with the doctor. They had previously told me that I do not have breast cancer. If that’s the case, why is the lump growing? A. A breast cancer can double in a month in some younger women. But its occurrence is very less. And your doctor had made it clear that you do not have a breast cancer. Some infection can also cause lumps. Lumps in breast can also be formed because of fat and blood vessels. There are chances that it may be fibro adenoma. This also grows like a tumor. No treatment is given as it can reduce in size but if it increases then it have to be removed by a surgery. So you must meet your doctor.