Small granules under the tongue can be seen for physiologic and pathologic reasons. Physiologic causes: Small granules or pinhole-sized bumps under the tongue, if they appear in the middle front part of the tongue, are glandular tissues of the prelingual glands. The small granules or bumps that appear on both sides of the tongue tie are called sublingual caruncles, which are the openings of the ducts of the sublingual and submandibular glands, and belong to normal body tissues. Pathological causes: may be oral warts, the initial manifestation of the sublingual, cheek or throat appear granular superfluous organisms, painless and itchy. With the gradual growth of warts in the form of corns, easy to bleed when touched. It may also be an oral tumor. If you suffer from oral tumors such as mucous cysts or papillomas, you may also have small granules or bumps under your tongue, which are basically painless and long-lasting. If you find that there are small granular bumps under the tongue, you should consult a doctor as soon as possible for a clear diagnosis, and if it is pathologic, it should be treated in time.