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How long does it take a sperm to reach the egg, what is its route? We answer these and other questions about the race to fertilization. How long does it take a sperm to reach the egg, what is its route? The journey of the sperm from its formation until it reaches the egg to fertilize it is not easy. The sperm will have to go through a series of barriers and obstacles to reach the egg. Read more

Certain critical stages of the IVF process may lead to IVF cancellation, including during ovarian stimulation, egg retrieval, semen collection, or embryo transfer. Read more

Asthenozoospermia is a decrease or absence of sperm motility, making it difficult for the sperm to meet the egg for fertilization. It is a very common cause of infertility in men and is diagnosed by means of a seminogram. Read more

The price of assisted reproductive techniques is augmented by hormonal medications required, which are not included in the initial estimate. Read more

A pregnancy test can give a false negative, that is, a negative result when the woman is pregnant and has typical pregnancy symptoms. The causes of a false negative can be varied. However, it may be that the woman has a psychological pregnancy and believes she is pregnant when she is not. Read more

Male sterility may be caused by several facrtors. Each factor requires a spefiic treatment in order to have children. Male infertility is the cause in 30% of sterility cases. Read more

Saliva ovulation tests consist of a small microscope to estimate, using saliva, a woman's fertile days. In the ovulatory phase, saliva dries to form a crystal pattern that resembles "fern leaves". Observation of this pattern indicates the most fertile period. Read more

The donation of sperm allows many people to become parents. The donor must meet a series of requirements before becoming accepted as a sperm donor. Read more

Rheumatoid arthritis is an autoimmune disease characterized by an abnormal inflammation response in the joints. Women with rheumatoid arthritis can have a sucessful pregnancy but it is important to control the birth correctly in order to avoid a possible flare up of the symptoms. Read more

Sterility due to a cervical factor consists of functional or anatomical alterations of the cervix that hinder the passage of spermatozoa. Read more

During pregnancy it is common that the expectant mother asks about how many pounds she should put on. The fact is that pregnancy weight gain depends on body mass index (BMI) and if it is a single or twin pregnancy. Read more

Due to the inconveniences caused to the sperm donor, such as weekly visits to the clinic, abstinence from sexual practice and blood tests, clinics may offer you financial compensation for your time. Read more