v3.26.1
Document And Entity Information
3 Months Ended
Mar. 31, 2026
Document Information Line Items  
Entity Central Index Key 0000802257
Document Type S-1/A
Entity Registrant Name Mitesco, Inc.
Entity Incorporation, State or Country Code NV
Entity Tax Identification Number 87-0496850
Entity Address, Address Line One 505 Beachland Blvd., Suite 1-377
Entity Address, City or Town Vero Beach
Entity Address, State or Province FL
Entity Address, Postal Zip Code 32963
City Area Code 844
Local Phone Number 383-8689
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company false
Amendment Description EXPLANATORY NOTE AND STATEMENT PURSUANT TO RULE 429This registration statement on Form S-1 includes a combined prospectus pursuant to Rule 429 under the Securities Act of 1933. The combined prospectus contained herein also relates to the registrant’s previously filed and effective Registration Statement on Form S-1/A (File No. 333-292511), which was filed by Mitesco, Inc. (“Mitesco,” the “Company,” “we,” “us,” “our”) with the Securities and Exchange Commission (the “SEC”) on December 31, 2025 and declared effective on January 14, 2026 (the “Original Registration Statement”). In accordance with Rule 429, the combined prospectus included in this filing serves as a post-effective amendment to the Prior Registration Statement.Pursuant to Rule 415(a)(6), the unsold securities from the Prior Registration Statement are being included in this filing serves as a post-effective amendment to the Prior Registration Statement and supersedes the prospectus contained in the Prior Registration Statement.As the date of this filing, 99,798,224 of securities registered under the Prior Registration Statement remain unsold. The filing fee previously paid with respect to such unsold securities will be applied to the securities registered hereby. The Prior Registration Statement will be deemed terminated as the effective date of this registration statement. 
Amendment Flag true
Business Contact [Member]  
Document Information Line Items  
Entity Address, Address Line One 505 Beachland Blvd., Suite 1-377
Entity Address, City or Town Vero Beach
Entity Address, State or Province FL
Entity Address, Postal Zip Code 32963
Contact Personnel Name Mack Leath
City Area Code 844
Local Phone Number 383-8689