| Cover | Dec. 11, 2023 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 11, 2023 |
| Entity File Number | 001-39785 |
| Entity Registrant Name | LIFEMD, INC. |
| Entity Central Index Key | 0000948320 |
| Entity Tax Identification Number | 76-0238453 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 800 Third Avenue |
| Entity Address, Address Line Two | Suite 2800 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10022 |
| City Area Code | (866) |
| Local Phone Number | 351-5907 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Common Stock Par Value [Member] | |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Trading Symbol | LFMD |
| Security Exchange Name | NASDAQ |
| Series Cumulative [Member] | |
| Title of 12(b) Security | Series A Cumulative Perpetual Preferred Stock, par value $0.0001 per share |
| Trading Symbol | LFMDP |
| Security Exchange Name | NASDAQ |
