Quarter Retired

Do you ever lose social security credits?
My wife worked before we had kids,and had almost all the s/s credits she needed to draw s/s when she retires. She is going back to work now,17 years later. Will she have to start from scratch,and lose all those credits? Or will she be able to pick up where she left off,and earn the few quarters of s/s that is needed?
Once earned SS credits are the earner’s for life. A break in ones working career has no bearing on the total credits earned at the time of retirement.
Retired Racing Quarter Horse Stallion: Not In This Life