Yes, it can. In extremely rare cases, Viagra may be associated
with a very painful erection
that is devoid of sexual pleasure. Known as priapism, this condition is a
medical emergency and one needs to seek immediate medical help. The penis will
remain erect and be painful. The color of the penis may range from dark blue to
dusky brown. Priapism when not treated can lead to permanent damage to the penis. Therefore, you need
to rush to the emergency center. Treatment varies but can involve surgery and/or
medications.
