Breast cancer develops when cells in the milk ducts or milk-producing lobules begin to grow abnormally. Ductal carcinoma originates in the ducts, while lobular carcinoma starts in the lobules.

Breast cancer is categorized into different types:

1. Invasive Breast Cancer – The most prevalent form.

2. Inflammatory Breast Cancer – A rare and aggressive variant.

3. Recurrent Breast Cancer – Occurs when cancer returns after initial treatment.

4. Metastatic Breast Cancer – The most severe stage, where cancer spreads beyond the breast to vital organs.

HER2 (Human Epidermal Growth Factor Receptor 2) is a gene found in normal breast cells responsible for cell growth and repair. However, when the HER2 gene mutates, it leads to uncontrolled cell division, resulting in HER2-positive breast cancer. This type of breast cancer tends to grow and spread faster but can be effectively treated with targeted therapies.

Although early-stage breast cancer often presents no symptoms, paying attention to the following warning signs can aid early detection:

• Swelling in the breast

• Lumps in the breast or underarm

• Nipple discharge or pain

• Changes in nipple appearance, such as inversion or rash formation

• Unusual redness, scaliness, or swelling of the breast skin

• Sudden breast enlargement or shrinkage on one side

Consult a healthcare professional if you notice any of these symptoms. While they do not confirm breast cancer, early medical evaluation is crucial.