Third, the glans penis presents some dangerous situations of purple. Generally speaking, the glans penis will not turn purple, but some phimosis men, when forced to have sexual intercourse, will stop the blood circulation because of the narrow foreskin mouth, forming a penis incarceration, which is the most serious situation. But judging from your situation, this should not be a problem, don't worry. This has nothing to do with whether the development is over or not!