Connected twins are identical twins that come together in the womb. A very rare phenomenon, the incidence is estimated at 1 in 49,000 births to 1 in 189,000 births, with a slightly higher incidence in Southeast Asia and Africa. Approximately half are fetal deaths and another third die in 24 hours. The majority of live births are female, with a 3: 1 ratio.
Safa and Marwa are two united twins from Charsadda KPK Pakistan have two hearts, two spines connected to the pelvis, four lungs, two esophageal, a liver, a partially shared nervous system and a common circulatory system and one single Head. From the hip down, all the organs are separated, including the reproductive system, the intestines and the bladder. They originated when a fertilized ovum could not be separated inside the uterus. The twins were in the media several times.
Chief Minister of Khyber Pakhtunkhwa Parvez Khattak, Visited Garhi Zardad, in Charsadda. In the beginning, the headed children assured full support from the provincial government in the treatment of Safa and Marwa.