The word curvature describes any type of curving body part. It is common for an erect penis to curve slightly. Penile curvature, however, describes an erect penis with an abrupt curve that can cause pain and interfere with sex (Fig. 1).
Some men were born with this condition (congenital penile curvature). In others, it develops over time. Penile curvature that develops later in life is called Peyronie’s disease.