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Semen quality is a measure of male fertility, a measure of the ability of sperm in semen to accomplish fertilization. Semen quality involves both sperm quantity and quality. Semen quality is a major factor in fertility. Cryptorchidism, hypospadias, testicular cancer and poor semen quality make up the syndrome known as testicular dysgenesis ...
Male infertility can wholly or partially account for 40% of infertility among couples who are trying to have children. [2] It affects approximately 7% of all men. [3] Male infertility is commonly due to deficiencies in the semen, and semen quality is used as a surrogate measure of male fecundity. [4]
Samaira Malik, from the Institute of Work, Health, and Organizations at the University of Nottingham, UK, said, “men are in fact equally affected by the unfulfilled desire for a child but are less open about their feelings.” [6] Therefore, understanding the psychological effects, this has on men, greatly contributes to discovering effective ...
The paternal age effect is the statistical relationship between the father's age at conception and biological effects on the child. [1] Such effects can relate to birthweight, congenital disorders, life expectancy, and psychological outcomes. [2] A 2017 review found that while severe health effects are associated with higher paternal age, the ...
The main cause of male infertility is low semen quality. In men who have the necessary reproductive organs to procreate, infertility can be caused by low sperm count due to endocrine problems, drugs, radiation, or infection. There may be testicular malformations, hormone imbalance, or blockage of the man's duct system.
The Ericsson method, first applied in a clinical setting in the 1970s by Dr. Ronald J. Ericsson, uses higher concentrations of sperm of the desired sex to increase the likelihood of conceiving that sex. [citation needed] When used to increase the likelihood of a female child, studies have resulted in between 70% and 80% female children. [16 ...
Lead, a heavy metal that can exist in both organic and inorganic forms, and is associated with adverse effects on male libido, erectile disfunction, premature ejaculation and poor sperm quality. [12] Lead is also associated with negative effects on the female reproductive system particularly for pregnant people. [13]
The decline in sperm quality reflected a shift in societal patterns of sexual behaviour, widespread recreational drug use, and preferences for marriage and fatherhood later in life. [ 19 ] The World Health Organization published its first laboratory manual for semen analysis in 1980, which sets global standard parameters for the measurement of ...