How does pregnancy spot form cause

Causes of pregnancy spots: 1. The skin loses elasticity: Because after pregnancy, the baby gradually grows up in the uterus, causing the skin on the pregnant woman's belly to tighten, thus causing the skin to lose its original elasticity and form pregnancy spots on the belly;2. Endocrine changes: due to changes in endocrine during pregnancy, the color of the nipple and abdominal midline of pregnant women will deepen. There are pregnant women in the 4 months of pregnancy or so, will be in the nose, cheeks, or forehead and other parts of the show tan spots, but there are also some pregnant women due to sufficient sebum secretion, will not show pregnancy spots.