Sialolithiasis is relatively common in dental practice. It most commonly affects the major salivary glands, particularly the submandibular glands. Young adults between the third and fourth decades of life are the most affected. The swelling of the oral floor region, caused by salivary retention due to the sialolith within the salivary duct, as well as the observation of its presence by transparency can clinically characterize it. Additionally, radiopaque imaging can determine the final diagnosis. Most of the time, the treatment is surgical. The purpose of this article is to present the case of a patient with painful symptoms caused by a sialolithiasis in the sublingual duct. Surgical removal was performed. The patient has been followed with no signs of recurrence.