Breast cancer is cancer that forms in the cells of the breasts.

After skin cancer, breast cancer is the most common cancer diagnosed in women in the United States. Breast cancer can occur in both men and women, but it’s far more common in women.

Substantial support for breast cancer awareness and research funding has helped created advances in the diagnosis and treatment of breast cancer. Breast cancer survival rates have increased, and the number of deaths associated with this disease is steadily declining, largely due to factors such as earlier detection, a new personalized approach to treatment and a better understanding of the disease.

Different people have different symptoms of breast cancer. Some people do not have any signs or symptoms at all.

Some warning signs of breast cancer are—

  • New lump in the breast or underarm (armpit).
  • Thickening or swelling of part of the breast.
  • Irritation or dimpling of breast skin.
  • Redness or flaky skin in the nipple area or the breast.
  • Pulling in of the nipple or pain in the nipple area.
  • Nipple discharge other than breast milk, including blood.
  • Any change in the size or the shape of the breast.
  • Pain in any area of the breast.

Keep in mind that these symptoms can happen with other conditions that are not cancer.

Men and breast cancer warning signs.

  • thickening of the breast tissue
  • nipple discharge
  • redness or scaling of the nipple
  • a nipple that retracts or turns inward
  • unexplained redness, swelling, skin irritation, itchiness, or rash on the breast

Most men don’t regularly check their breast tissue for signs of lumps, so male breast cancer is often diagnosed much later.

Types of breast cancer

There are two categories that reflect the nature of breast cancer:

  1. Noninvasive (in situ) cancer is cancer that hasn’t spread from the original tissue. This is referred to as stage 0.
  2. Invasive (infiltrating) cancer is cancer that’s spread to surrounding tissues. These are categorized as stages 1, 2, 3, or 4.

What Do Lumps in My Breast Mean?

Many conditions can cause lumps in the breast, including cancer. But most breast lumps are caused by other medical conditions. The two most common causes of breast lumps are fibrocystic breast condition and cysts. Fibrocystic condition causes noncancerous changes in the breast that can make them lumpy, tender, and sore. Cysts are small fluid-filled sacs that can develop in the breast