What are the lines you see on your stomach when pregnant?

Linea Nigra

The linea nigra is a dark line that runs from the belly button to the pubic bone. It is caused by increased levels of the hormone progesterone, which stimulates the production of melanin, the pigment that gives skin its color. The linea nigra usually appears in the second trimester of pregnancy and fades after birth.

Striae Gravidarum

Striae gravidarum are stretch marks that can occur on the abdomen, thighs, breasts, and buttocks during pregnancy. They are caused by the rapid stretching of the skin as the body grows to accommodate the growing baby. Striae gravidarum are usually pink or red when they first appear, but they may fade to white over time.

Cutis Laxa

Cutis laxa is a rare condition that can occur during pregnancy. It is characterized by loose, sagging skin on the abdomen and other parts of the body. Cutis laxa is caused by a lack of collagen and elastin, the proteins that give skin its strength and elasticity. The condition usually resolves after birth, but it can sometimes be permanent.