Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2024	Nov. 07, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Trading Symbol	IRON
Entity Registrant Name	Disc Medicine, Inc.
Entity Central Index Key	0001816736
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding		29,757,732
Entity File Number	001-39438
Entity Tax Identification Number	85-1612845
Entity Address, Address Line One	321 Arsenal Street, Suite 101
Entity Address, City or Town	Watertown
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02472
City Area Code	617
Local Phone Number	674-9274
Entity Incorporation, State or Country Code	DE
Title of 12(b) Security	Common Stock, $0.0001 Par Value
Security Exchange Name	NASDAQ
Document Quarterly Report	true
Document Transition Report	false