Dozens of LGBT accounts on WeChat have been deleted from the social media applications.
University students running some of the accounts supporting or promoting the LGBT community said the removal may be part of China's latest crackdown on gay online content.
Owners of some of the accounts said Thursday they were no longer able to access their profiles. They said all of the content on their accounts were deleted.
"Many of us suffered at the same time. They censored us without any warning. All of us have been wiped out," an account manager for one LGBT group said.
Some of the account owners had received a notice from WeChat stating that they had "violated regulations on the management of accounts offering public information service on the Chinese internet."
Homosexuality in China is illegal and classified as a mental disorder. Some politicians attempted to reclassify homosexuality as a "psychological disorder."
LGBT content on the internet has largely been censored. The Cyberspace Administration of China previously said it aimed to enhance its crackdown on content that was "negatively influencing youth" - including gay content and social media groups.
"Authorities have been tightening the space available for LGBT advocacy and civil society generally. This is another turning of the screw," Darius Longarino, a student at the Yale Law School's Paul Tsai's China Center, said.
In May, the loyalty of LGBT university groups to the Communist Party had been questioned by the government. LGBT groups were asked to attend a meeting with the Communist Youth League - the agency for student affairs run by the Chinese Communist Party.
Sources within the groups said they were asked very specific questions, including whether or not they were against the Party and whether they were getting any funding from foreign sources.
"We explained that our LGBT education work was within campus only. After our meeting in May we were dismantled," a member of one of the LGBT university groups said.
