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Human Phenotype Ontology
| Preferred Name | Irregular menstruation | |
| Synonyms |
Irregular periods Menstrual irregularities Menstrual irregularity Irregular menses |
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| Definitions |
Abnormally high variation in the amount of time between periods. Most women have between 11 and 13 menstrual periods each year. Bleeding usually lasts around 5 days (range: 2 to 7 days). When menstruation first starts, it can take up to 2 years to establish a regular cycle. After puberty, most women's menstruation is regular. The length of time between each period is similar. The normal menstrual cycle length is 28 (+/- 7) days days with the menstruation lasting between 2 and 7 days. It can take up to 2 years from menarche to develop a mature hypothalamic-pituitary-gonadal (HPG) axis. Within 1 year, 75 percent of girls have a cycle between 21 and 45 days. By the fifth gynecological year, 90 percent of girls will have regular cycles. |
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| ID |
http://purl.obolibrary.org/obo/HP_0000858 |
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| comment |
Most women have between 11 and 13 menstrual periods each year. Bleeding usually lasts around 5 days (range: 2 to 7 days). When menstruation first starts, it can take up to 2 years to establish a regular cycle. After puberty, most women's menstruation is regular. The length of time between each period is similar. The normal menstrual cycle length is 28 (+/- 7) days days with the menstruation lasting between 2 and 7 days. It can take up to 2 years from menarche to develop a mature hypothalamic-pituitary-gonadal (HPG) axis. Within 1 year, 75 percent of girls have a cycle between 21 and 45 days. By the fifth gynecological year, 90 percent of girls will have regular cycles.
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| database_cross_reference |
UMLS:C0156404 SNOMEDCT_US:80182007
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|
| definition |
Abnormally high variation in the amount of time between periods.
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| has_exact_synonym |
Irregular periods Menstrual irregularities Menstrual irregularity Irregular menses
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| has_obo_namespace |
human_phenotype
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| id |
HP:0000858
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| label |
Irregular menstruation
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|
| notation |
HP:0000858
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| prefLabel |
Irregular menstruation
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| treeView | ||
| subClassOf |
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