Consensual same-gender sex is considered criminal in the West African nation and punishable by a jail sentence from six months to five years and a fine.
Gay rights defender and founder of the Association for the Defence of Homosexuals, Alice Nkom, says detainees in Cameroon are frequently tortured in police stations to force them confess.
It comes as another African country, Liberia, prepares to consider a bill to strengthen its own existing anti-gay laws.
Liberia’s former first lady, Senator Jewel Taylor, submitted a bill last week that would prohibit same-sex marriage and make homosexuality a first-degree felony, punishable by up to 10 years in prison.
She said: ‘We are only strengthening the existing law. Some media are reporting that I said anyone found guilty of involvement in same sex should face the death penalty.
‘I did not say so. I am calling for a law that will make it a first degree felony,’ she said.