Overview of Breast Lumps
Breasts are basically comprised of fibrous connective tissue, blood vessels, nerves, fat, glandular tissue, and a complex group of ducts and milk-producing lobules. This system creates an uneven and lumpy terrain on the chest. A breast lump may distinguish itself from surrounding areas through some differences. In general, the mass may be significantly more solid. The size can vary, ranging from a pea to a golf ball. Breast lumps usually do not cause pain, making it quite difficult to notice. 
When to Worry About Breast Lumps?
It may be frightening to discover a breast lump. However, this problem is not uncommon and it is mostly benign or harmless. Some typical signs may be a cause for concern, such as changing sizes of the lump, bloody discharge, enlarged nipples, or changes in the skin texture or color around the mass. If you notice any of these symptoms, keep in mind to inform your doctor immediately. It should be checked carefully to determine whether the mass is benign or cancerous. This is especially important when you have certain risk factors for breast cancer.