Depends on the degree of curvature, some curving is normal. Diseases such as hypospadias, epispadius (urethral orifices situated below or above the shaft respectively, rather than at the tip),...
Firstly, the average penis isn't ruler-straight. It's perfectly common to have a slight curve to the left or the right. However, any serious curvature that affects intercourse should be looked at by...
A severe curve could be due to medical condition known as Peyronie disease A minor bend in the erect penis is perfectly normal, as few penises are straight as an arrow. In some cases of Peyronie's,...