Omphalitis of newborn is the medical term for inflammation of the umbilical cord stump in the neonatal newborn period, most commonly attributed to a bacterial infection. Typically immediately after an infant is born, the umbilical cord is cut with a small remnant (often referred to as the stump) left behind. Normally the stump separates from the skin within 3–45 days after birth. A small amount of pus-like material is commonly seen at the base of the stump and can be controlled by keeping the stump open to air to dry. Certain bacteria  can grow and infect the stump during this process and as a result significant redness and swelling may develop, and in some cases the infection can then spread through the umbilical vessels to the rest of the body. While currently an uncommon anatomical location for infection in the newborn in the United States, it has caused significant morbidity and mortality both historically and in areas where health care is less readily available. In general, when this type of infection is suspected or diagnosed, antibiotic treatment is given, and in cases of serious complications surgical management may be appropriate. Signs and symptoms
Clinically, neonates with omphalitis present within the first two weeks of life with signs and symptoms of a skin infection (cellulitis) around the umbilical stump (redness, warmth, swelling, pain), pus from the umbilical stump, fever, fast heart rate (tachycardia), low blood pressure (hypotension), somnolence, poor feeding, and yellow skin (jaundice). Omphalitis can quickly progress to sepsis and presents a potentially life-threatening infection.
Most of them live in Brunei, Indonesia, Malaysia, Singapore, Moro Province in Philippines, Pattani and Cambodia. Many of the royal families of this region such as the previous royal families of the Philippines (Sultanate of Sulu, Sultanate of Maguindanao, Confederation of Sultanates of Ranao), Singapore (Sultanate of Singapore), Malaysia (Sultanates of Johor and Perlis), Indonesia (Sultanates of Siak, Pontianak, Gowa, some Javanese Sultanates), and the existing royal family of Brunei (House of Bolkiah) are also Sayyids, especially of BaAlawi.Some common surnames of these Sayyids are al-Saqqaf, Shihab (or Shahab), al-Aidaroos, al-Habsyi (or al-Habshi), al-Kaff, al-Aththos, al-Haddad, al-Jufri (or al-Jifri), al-Muhdhar, al-Shaikh Abubakar, al-Qadri, al-Munawwar. Genetic Y-DNA research
According to Islamic prophetic tradition, Muhammad was descended from Abraham through Ismail. Some researchers have suggested using Y chromosome genetic data from Sayyid groups and from Jewish and Samaritan sources to reconstruct genetic information about the historical Abraham. Tesayyud
In the Ottoman Empire, tax breaks for "the People of the House" encouraged many people to buy certificates of descent or forge genealogies; the phenomenon of teseyyüd – falsely claiming noble ancestry – spread across ethnic, class, and religious boundaries. In the 17th century, an Ottoman bureaucrat estimated that there were 300,000 impostors. In 18th-century Anatolia, nearly all upper-class urban people claimed descent from Muhammad. Prince Sayyid
Descendants of Hazrat Ishaan, who are known as Imams of Naqshbandi Sunni Islam and supreme leaders of the Naqshbandi Sufi Order are widely known to bear the title "Sardar Sayyid" or "Amir Sayyid", which means "Prince Sayyid" in English.