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Is low sperm count noticeable?

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Open access•Journal Article•DOI Evidence for Decreasing Quality of Semen During Past 50 Years Elisabeth Carlsen, Aleksander Giwercman, Niels Keiding, Niels E. Skakkebæk - Show less +3 more 01 Mar 1993-Obstetrical & Gynecological Survey 704 Citations	As male fertility is to some extent correlated with sperm count the results may reflect an overall reduction in male fertility.
Open access•Journal Article•DOI Another reason for impeccable oral hygiene: oral hygiene-sperm count link Solomon O. Nwhator, KA Umeizudike, PO Ayanbadejo, O I Opeodu, Joseph A. Olamijulo, Timo Sorsa - Show less +5 more 01 May 2014-The journal of contemporary dental practice 21 Citations	PRINCIPAL FINDINGS There appears to be a link between poor oral hygiene and low sperm count.
Open access•Journal Article•DOI Antisperm antibodies are more prevalent in men with low sperm motility. Christopher L.R. Barratt, L. M. Havelock, P. E. Harrison, Ian D. Cooke - Show less +3 more 01 Apr 1989-International Journal of Andrology 38 Citations	It is concluded that significantly more men with low sperm motility have antisperm antibodies.
Open access•Journal Article•DOI Body mass index effects sperm quality: a retrospective study in Northern China. En-Yin Wang, Yan Huang, Qingyun Du, Gui-Dong Yao, Yingpu Sun - Show less +4 more 01 Mar 2017-Asian Journal of Andrology 31 Citations	The results clearly indicated lower sperm quality (total sperm count, sperm concentration, motile sperm, relative amounts of type A motility, and progressive motility sperm [A + B]) in overweight and obese participants than in those with normal body mass index.
Open access•Journal Article•DOI Another reason for impeccable oral hygiene: oral hygiene-sperm count link Solomon O. Nwhator, KA Umeizudike, PO Ayanbadejo, O I Opeodu, Joseph A. Olamijulo, Timo Sorsa - Show less +5 more 01 May 2014-The journal of contemporary dental practice 21 Citations	For the first time, there appears to be a significant association between poor oral and subnormal sperm count.
Journal Article•DOI How little is enough? The evidence for post-vasectomy testing. Tabatha Griffin, Rebecca Tooher, Kris Nowakowski, Mark Lloyd, Guy J. Maddern - Show less +4 more 01 Jul 2005-The Journal of Urology 68 Citations	Patients with persistent nonmotile sperm in low numbers could be given cautious assurance of success.
Journal Article•DOI Epidemiological assessment of occupationally related, chemically induced sperm count suppression Thomas H. Milby, Donald Whorton - Show less +1 more 01 Feb 1980-Journal of Occupational and Environmental Medicine 49 Citations	It is suggested that the key to identifying and assessing occupationally related sperm count suppression lies in the proper classification and interpretation of group sperm count data.

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What are the causes of low sperm count?5 answersThe causes of low sperm count include chronic diseases such as diabetes mellitus, hypertension, hyperlipidemia, hyperuricemia, and skin diseases. Environmental factors such as exposure to bisphenol A, phthalates, heavy metals, and heat can also contribute to low sperm count. Unhealthy lifestyle behaviors like obesity, poor diet, smoking, alcohol consumption, marijuana use, stress, reduced sleep, and sedentary life can negatively impact sperm count. Additionally, the use of laptop computers connected to Wi-Fi and exposure to radio frequency electromagnetic waves (RF-EMW) and high temperatures may also be associated with declines in male fertility. Genetic factors can also play a role, as seen in a study on Brown Swiss bulls that identified a recessive loss-of-function allele of the QRICH2 gene as a cause of low sperm concentration and immotile sperm with multiple morphological abnormalities.

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