<unk> , penile duplication (PD),<unk>  terata, or<unk> sparatus, is a medical condition in which a male infant is born with two penises. This is an extremely rare disorder with only approximately 100  cases of<unk>  recorded since the first case reported by Johannes Jacob Wecker in 1609. Its occurrence is one in 5.5 million men in the United States.
When<unk>  is present, it is usually accompanied by other congenital anomalies such as renal, vertebral, hindgut or anorectal duplication. There is also a higher risk of spina bifida. Infants born with PD and its related conditions have a higher death rate from various infections associated with their more complex renal or colorectal systems.
It is thought<unk>  occurs in the fetus between the 23rd and 25th days of gestation when an injury, chemical stress, or malfunctioning homeobox genes hamper proper function of the caudal cell mass of the fetal mesoderm as the urogenital sinus separates from the genital tubercle and rectum to form the penis.
Diphallia
Dysphonia
Aphonia
Coccydynia
Hemiballismus
Dysgraphia
Dysmetria
Excessive tearing