Verywell Health on MSN

What causes mottled skin and when should you worry?

Mottled skin is a bluish-red pattern under the skin caused by reduced blood flow. Common causes of mottled skin include cold ...
What to Expect on MSN

Got blotches, patches, or mottling? The truth about pregnancy skin darkening

Here's why you're seeing darkening or discoloration of your skin and what to do about it.