What causes flat brown patches with dark dots on the skin?

Hello,

Welcome to icliniq.com.

I read your query and understood your concern.

Let us go through this together. The patch you describe, a flat, light brown patch with smaller, darker dots, could be due to several causes. Here are some possibilities:

Possible causes are as follows:

1. Café-au-lait spots: These are flat, light brown patches that often appear in early childhood and are usually harmless. If you have more than five of them or they are larger than 5 millimeters in children or 15 millimeters in adults, it is worth mentioning to a doctor to check for conditions like neurofibromatosis.

2. Lentigines (sun spots or age spots): These are flat, brownish spots usually caused by sun exposure. They are generally harmless.

3. Mole (nevus): Sometimes, moles can have a flat, light brown background with darker dots. Moles are usually harmless but should be monitored for changes.

4. Pigmented purpura: Small, reddish-brown patches due to leaky blood vessels (usually harmless).

You should be concerned if you notice the following changes in the patch:

1. Is growing rapidly or changing shape, or color.

2. Has irregular borders.

3. Has multiple colors.

4. It is larger than 6 millimeters (the size of a pencil eraser).

5. It is itchy, painful, or bleeds.

These can be warning signs for melanoma (skin cancer) or other skin issues and should be checked by a dermatologist.

Since you are unsure and you have noticed the patch has darker dots inside, it is a good idea to get it checked by a doctor, especially if you have a personal or family history of skin cancer or if it is changing. To prepare for the appointment, I suggest you follow these steps:

1. Take a clear photo of the patch (for your records and to show any changes).

2. Note when you first noticed it.

3. Watch for any changes in size, shape, or color.

I hope this helps.

Kindly follow up if you have more doubts.

Thank you.