Erectile dysfunction, an ability to maintain an erection that is not very hard, and premature ejaculation are two different disorders, but both are rather widespread. A weak erection is normally all about blood flow or mental stress while a pe is normally linked with anxiety or over excitement. It is possible for them to be related at times – as in if thinking about coming too soon impacts erection quality. These include stress reduction and exercise, getting into regular communication with a partner in case one is involved. If they do – it is wiser to speak with a healthcare provider to determine an effective course of action.