How tall is he? How much does he weigh? Any weight change? When did it start? Does he have erection early in the morning? Any erection problems? Any ejaculation problems? Does anything make it better or worse? Any other symptoms? Are you aware of anything which might have triggered it? Any medical problems? Any surgeries? Any medications including over-the-counter pills and herbs? Any family medical history? Is his stress increased at home or work just before the problem started?
It seems to be Peyronie's disease (PD). The cause is unknown and most likely represents a combination of factors including chronic minor injury and genetic susceptibility. Patient and partner quality of life are significantly impacted, as men with PD are at increased risk of depression, relationship difficulties, and body-image issues. He should see a urologist to have exam. If mild curvature worsens or causes sexual dysfunction, we suggest medical and/or surgical management. He should have an intralesional injection with oral pentoxifylline and physical therapy (traction) to treat PD patients with moderate deformity (30 to 90 degree curvature) and an intact erection.