While waiting for a lunch to begin, Publicis Groupe CEO Arthur Sadoun put his hand on his chin and neck. There, he felt a bump. In a car ride afterward, he pointed it out to Carla Serrano, global CSO, and Michelle McGowan, evp, corporate communications in the U.S., who both urged him to see a doctor.

Within days, Sadoun had his diagnosis—stage one cancer. HPV, a virus that commonly causes cervical cancer in women, can also cause cancer in men, as more than a third of HPV-related cancers in the U.S. happen in a man’s throat, where Sadoun’s was located.