This document summarizes key information about salivary gland diseases. There are four main salivary glands: the parotid glands, submandibular glands, and two sublingual glands. Disorders of the sublingual glands are rare and include retention cysts and tumors. Ranulas are mucous cysts that can occur in the sublingual or submandibular glands. Submandibular gland disorders include infections, stones, and tumors. The parotid gland can develop infections, tumors, or stones, with pleomorphic adenoma being the most common tumor. Surgeries for these glands aim to remove pathology while protecting nearby nerves.