Why is my skin more oily since giving birth?

Hormones: Changes in hormone levels can cause changes in the texture and surface of your hair, skin, and nails. Things usually return to normal within a few months.

Androgens: Many women - especially those with naturally oily or acne-prone skin - develop oilier skin during and/or after pregnancy because of all the hormone changes that occur during pregnancy. The usual culprits are androgens - the same hormones that cause breakouts before a menstrual period. Try a good astringent and non-comedogenic cleanser; if that doesn't help, see your dermatologist.