However, imperforate anus will present as the low version 90% of the time in females and 50% of the time in males. Imperforate anus is an occasional complication of sacrococcygeal teratoma. Society and culture
Ribbon
The ribbon to represent anorectal malformations/imperforate anus abnormalities is turquoise, which encapsulates hope, strength and a positive attitude. Zebra stripes were added to show the uniqueness and represent just how no two zebra markings are the same, nor are people living with ARM/IA. Awareness day
The international awareness day for anorectal abnormalities is 1 May. The day aims to raise awareness about an abnormality many have not heard of by creating a human connection for an abnormality that often leaves people feeling alone. The day 1 May was chosen to represent the incidence of such malformations, which occur in roughly 1 in 5,000 babies. History
Seventh-century Byzantine physician Paulus Aegineta described a surgical treatment for imperforate anus for the first time. tenth-century Persian physician Haly Abbas was the first to highlight preserving the sphincter muscles throughout the surgery and the prevention of strictures with a stent. He has reported the use of wine for wound care in this surgery. Some reports of children surviving this surgery are available from the early medieval Islamic era. References
External links
Medline Plus Medical Encyclopedia: Imperforate anus
A better way is to first mix the powder with hot water, so that the methyl cellulose particles are well dispersed (and so have a much higher effective surface area) in the water, and cool down this dispersion while stirring, leading to the much more rapid dissolution of those particles. See also
Carboxymethyl cellulose
Ethyl cellulose
Ethyl methyl cellulose
Hydroxypropyl cellulose
Hydroxyethyl cellulose

References
Further reading
Cathleen Baker (1984). Methylcellulose & Sodium Carboxymethylcellulose: An Evaluation for Use in Paper Conservation through Accelerated Aging. Preprints of the Contributions to the Paris Congress, 2–8 September 1984: Adhesives and Consolidants, pp. 55–59. International Institute of Conservation. Robert L. Feller and Myron H. Wilt (1990). Evaluation of Cellulose Ethers for Conservation (free fulltext). Getty Conservation Institute. Pijper A (March 1947). "Methylcellulose and Bacterial Motility". J. Bacteriol. 53 (3): 257–69. doi:10.1128/JB.53.3.257-269.1947. PMC 518306. PMID 16561270.