| Document and Entity Information | Dec. 27, 2022 |
| Cover [Abstract] | |
| Entity Registrant Name | MINERVA SURGICAL INC |
| Amendment Flag | false |
| Entity Central Index Key | 0001452965 |
| Document Type | 8-K |
| Document Period End Date | Dec. 27, 2022 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-40919 |
| Entity Tax Identification Number | 26-3422906 |
| Entity Address, Address Line One | 4255 Burton Dr. |
| Entity Address, City or Town | Santa Clara |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 95054 |
| City Area Code | (855) |
| Local Phone Number | 646-7874 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.001 par value per share |
| Trading Symbol | UTRS |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
