After your pregnancy, the linea nigra should fade over a few weeks to months, though in some women it may not disappear entirely. If you still have a pregnancy line months later and want to treat it, skin whitening products might be an option (they're not recommended during pregnancy).
How do I make my linea nigra disappear?
If you really want to get rid of linea nigra, Dr. Sheth says you may use bleaching creams after delivery if you're formula-feeding, or you could try a fade cream or topical retinol. If you want a natural approach, try applying a little lemon juice to your skin.
How long does it take for black linea nigra to go away?
The linea nigra should gradually fade all on its own a few months after your baby is born. In the meantime, try to embrace it as just one more thing that makes your growing bump beautiful.