It may be BXO(balenitis xerotica Obliterans)
It is due to some type of infection may cause structure urethra wer urinary pasaage is occluded partially.
How is urine flow? Are you having straining at urination?
Need to get evaluated.
Get d below investigations done and consult.
Next Steps
Urine routine and microscopy, Retrograde urethrogram, Uroflowmetry