Swollen papillae may appear more prominent and appear as red circles after throat infections, viral infections or some fungal infections. Scratches can be because of sore throat
or can be because of some bacterial, fungal infection. Without clinical examination and tests, it is difficult to give definite diagnosis. You can consult your dentist
to do a biopsy
to rule out any malignant condition or cancer. If they are not increasing in size and are not painful, then you don’t have to worry much about them. To avoid any secondary infections, you can do warm saline rinses 3-4 times a day and keep the tongue clean to avoid any secondary infections.