The Food and Drug Administration is warning women and doctors that devices on the market purporting to make cosmetic alterations to the vagina have not been approved by regulators for that purpose and could result in painful side effects.

The agency has warned seven companies that their laser- or radiofrequency-based products are inappropriately being marketed as providing “vaginal rejuvenation” procedures. The companies have claimed that the devices will tighten the vagina or treat symptoms from menopause, urinary incontinence, or sexual function.