Analysis of information sources in references of the Wikipedia article "处女膜" in Chinese language version.
Hymens, or vaginal closure membranes or vaginal constrictions, as they are often referred to, are found in a number of mammals, including llamas, ...
In reality, many activities can tear the hymen, including vigorous exercise, horseback or bike riding, masturbation or the insertion of tampons or other objects into the vagina
We agree with Rogers and Stark that so called rupture and bleeding of the hymen is not to be routinely expected after first sexual intercourse.
De vragenlijsten werden verzameld in de periode van maart 2005 tot maart 2006.487 Questionnaires were collected: 173 women were Dutch, 132 Middle Eastern and Moroccan, 39 African, 32 Eastern European, 39 Asian and 53 from Middle and South America.Women from the Netherlands reported much less pain and blood loss than women from foreign countries.Women from countries where blood loss often is regarded as a proof of virginity still reported in 26.5% of the cases to have had no blood loss at first intercourse. 30% of the entire group reported severe pain: especially African women (49%) and women from the Middle East and Morocco (45%) report this. 19 % of Dutch women report severe pain.The relation between blood loss and pain is different for the different groups suggesting other than biological reasons.The use of tampons prior to first intercourse did not have a significant influence on the experienced blood loss.
The hymen oftentimes, though not always, rips or tears the first time a female engages in penetrative intercourse, which may cause some temporary bleeding and slight discomfort.
The hymen oftentimes, though not always, rips or tears the first time a female engages in penetrative intercourse, which may cause some temporary bleeding and slight discomfort.
De vragenlijsten werden verzameld in de periode van maart 2005 tot maart 2006.487 Questionnaires were collected: 173 women were Dutch, 132 Middle Eastern and Moroccan, 39 African, 32 Eastern European, 39 Asian and 53 from Middle and South America.Women from the Netherlands reported much less pain and blood loss than women from foreign countries.Women from countries where blood loss often is regarded as a proof of virginity still reported in 26.5% of the cases to have had no blood loss at first intercourse. 30% of the entire group reported severe pain: especially African women (49%) and women from the Middle East and Morocco (45%) report this. 19 % of Dutch women report severe pain.The relation between blood loss and pain is different for the different groups suggesting other than biological reasons.The use of tampons prior to first intercourse did not have a significant influence on the experienced blood loss.
An early study by Jenny (1987) confirmed that all girls are born with hymens.