A penile fracture occurs when the appendage is subject to a sharp, blunt force trauma, which can occur during vigorous intercourse or masturbation.
Since 1924, 1,600 cases have been recorded worldwide – roughly 16 instances per year, the Telegraph previously reported.
Researchers noted that in 50 per cent of cases, a gruesome cracking sound can be heard. Four in five male victims lost their erection.
Those who have already been traumatised from breaking their penis are often left with erectile dysfunction problems and a lifetime of painful sex.
MailOnline reported on a man from southern China who was left in agony after breaking his penis during sex with his wife in April.
Doctors found that his penis was at an odd angle and was in a swollen shape that made it look like an eggplant.
He was diagnosed with a penile fracture after tearing a sponge-like erectile tissue called corpora cavernosa.
Blood flows into corpora cavernosa that runs along the penis and making it hard during an erection.
The trick to stopping penile injuries is to thrust quite shallowly, according to sex expert Tracey Cox.
Holding your partner close to you using a grinding rather than thrusting motion will also reduce the risk, she told MailOnline.