The nipple has always been inverted. How can it be brought out?

Patient's question:

Not very fat, normal breasts, just the nipples are inverted, like pits, frustrated

Doctor's answer:

Early attention should be given to frequently washing with warm water. After washing, you can often pull the nipple outward by yourself, or you can use negative pressure suction to pull the nipple. It can also gradually improve on its own. If it doesn't work, surgical correction is necessary.