Color
Atherosclerosis, a common problem of aging, restricts blood flow, affecting heart, brain, and penis. With less blood in the area, the penis appears lighter in color. This is nothing to worry about as long as you have regular checkups that show that everything else is in working order. Also, just as skin everywhere shows effects of aging, so does the penis skin. It may appear more mottled.
Size
Touchy subject. The truth is the penis will shrink a little as time goes on as a result of decreased blood flow and testosterone. “By the time a guy is in his 60s and 70s, he may lose a centimeter to a centimeter and a half in penis length. If a guy carries belly weight too, the penis will appear smaller without it actually being smaller. The penis starts inside the body