How Metastatic Breast Cancer Can Affect Your Skin and Nails

Metastatic breast cancer can affect the skin and nails in several ways. Some common effects include:

1. Skin rash: Metastatic breast cancer can cause a variety of skin rashes, including:

- Erythema (redness): This is a common skin rash that appears as red, itchy patches on the skin. It can occur anywhere on the body, but it is most common on the face, neck, and chest.

- Pruritus (itching): Itchy skin is another common symptom of metastatic breast cancer. It can occur anywhere on the body, but it is most common on the palms of the hands, soles of the feet, and scalp.

- Maculopapular rash: This is a type of rash that consists of small, red bumps on the skin. It can occur anywhere on the body, but it is most common on the trunk.

- Urticaria (hives): This is a type of rash that consists of large, raised, itchy bumps on the skin. It can occur anywhere on the body, but it is most common on the face, neck, and chest.

- Petechiae (tiny red dots): These are small, round, red spots that appear on the skin. They are caused by bleeding from small blood vessels.

2. Skin changes: Metastatic breast cancer can also cause changes to the texture and appearance of the skin, including:

- Dry skin: This is a common skin problem that occurs when the skin loses moisture. It can cause the skin to feel rough, scaly, and itchy.

- Thickened skin: This can occur when the skin produces too much keratin, a protein that helps to keep the skin strong and elastic. Thickened skin can be uncomfortable and itchy.

- Skin ulcers: These are open sores that can develop on the skin. They are often caused by a breakdown of the skin's natural protective barrier.

3. Nail changes: Metastatic breast cancer can also cause changes to the nails, including:

- Brittle nails: These are nails that chip or break easily.

- Discolored nails: This can occur when the nails turn yellow, brown, or black.

- Nail thickening: This can occur when the nails become thicker than normal.

- Nail ridges: These are縦lines that appear on the nails.

- Nail separation: This occurs when the nail separates from the nail bed.

If you are experiencing any of these skin or nail changes, it is important to see your doctor to rule out any underlying medical conditions, including metastatic breast cancer.