Visceroptosis
Visceroptosis is a prolapse or a sinking of the abdominal viscera (internal organs) below their natural position. "Ptosis" being the defining term, any or all of the organs may be displaced downward. When only the intestines are involved, the condition is known as enteroptosis. When the stomach is found below its normal position, the term gastroptosis is used. The condition exists in all degrees of severity and may not give rise to any adverse symptoms. 
Generally, when adverse symptoms are associated with the condition, however, there may be loss of appetite, heartburn, nervous indigestion, constipation, diarrhea, abdominal distention, headache, vertigo, emaciation, and loss of sleep. Any or all of these symptoms may be present. 
The condition may be brought about by loss of muscular tone, particularly of the abdominal muscles, with relaxation of the ligaments that typically hold the viscera in place. Tightlacing has been held to be a cause as well. Corsets to reduce the circumference of womens waists have been used to enable fashionable styles occurring during several historical periods, such as the late 1800s and early 1900s, when these symptoms were described for treatment by physicians. 
Adverse symptoms may be alleviated by supporting the organs with a properly applied bandage, or other similar device. Rest in bed, attention to diet, hygiene, exercise, and general muscular strengthening will cure the majority of cases. In some cases, surgical intervention may become necessary.Visceroptosis is a known risk factor for the development of Superior mesenteric artery syndrome.
Visceroptosis also is known as Glénards disease (after French physician Frantz Glénard [1848–1920]).

Glénards theory – the theory that abdominal ptosis is a nutritional disease with atrophy and prolapse of the intestine
Glénards test (also called girdle test) – while standing behind the patient, the examiner places his arms around the patient, so that his hands meet in front of the patients abdomen; he squeezes, raising the viscera, and then allows them to fall suddenly; Glénards theory suggests that if the patient feels relieved by the raising pressure and experiences distress on the release, the condition is probably one of splanchnoptosis
Stillers theory – the theory that gastroptosis is due to universal asthenia characterized by weakness and laxity of the viscera

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This article incorporates text from a publication now in the public domain: Gilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905). New International Encyclopedia (1st ed.). New York: Dodd, Mead. {{cite encyclopedia}}: Missing or empty |title= (help)