White colored tongue with small taste buds like red bumps.if i brushed then tongue is red. if i had tea then color is yellow.back also small red bumps?

White tongue common: The tongue is known to have many variations with pigmenting, size, appearance, ; not always due to disease. Causes of a tongue that looks white include: lichen planus (responds to steroids), white sponge nevus (familial, benign, permanent), smoker's leukoplakia (2% risk of cancer, needs biopsy), hairy leukoplakia (due to epsteinbarr virus), warts (due to papillomavirus), "thrush" (rx antifungals).

Tongue: Please make an appointment with your Dentist or with an Otolaryngologist (ENT) to be examined, diagnosed, and treatment planned. Your symptoms could have a myriad of causes, so you will have to be seen to do a differential diagnosis.