Sore lumps on back of tongue?

Taste buds or ?: Could be sore or inflamed taste buds, bacterial or viral infection or something else. Depending upon how sore, other symptoms, and\or how curious as to the cause, see pcp, ENT or dentist. No one can render an accurate diagnosis over the internet, especially sight unseen.

Lumps: Lumps: Size, shape, color, duration, severity of soreness, recent changes in diet/t'paste/mouthwash/supplements/vitamins/meds, trauma, burns, etc. You really have to be seen to be diagnosed and treatment planned. Please call your Dentist.