Comedones may be closed or open. A closed comedo has an obstructed opening to the skin and may rupture to cause a low-grade skin inflammatory reaction in the area. The common name for a closed comedo is a whitehead. An open comedo has a wide opening to the skin and is capped with a blackened mass of skin debris. It is commonly known as a blackhead. Acne occurs when sebaceous glands of the skin begin to secrete oil during puberty.
Guam is an island in the western Pacific Ocean. It is a U.S territory officially known as the Territory of Guam. The official languages are Chamorro and English (influenced by U.S).
Guam (/ËÉ¡wÉËm/ or /ËÉ¡wÉm/; Chamorro: GuÃ¥hÃ¥n [ËÉ¡Ê·ÉhÉn]; formally the Territory of Guam) is an unincorporated and organized territory of the United States. Located in the western Pacific Ocean, Guam is one of five American territories with an established civilian government. The capital city is HagÃ¥tÃ±a and the most populous city is Dededo. In 2015, 161,785 people resided on Guam. Guamanians are American citizens by birth. Guam has an area of 210 sq mi (544 kmÂ²) and a population density of 770/sq mi (297/kmÂ²). It is the largest and southernmost of the Mariana Islands and the largest island in Micronesia.