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Dr. Eric Daiter

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How Can I help You?

Dr Eric Daiter has served Monmouth and Middlesex Counties of New Jersey as an infertility expert for the past 20 years. Dr. Daiter is happy to offer second opinions (at the office or over the telephone) or new patient appointments. It is easy, just call us at 908 226 0250 to set up an appointment (leave a message with your name and number if we are unable to get to the phone and someone will call you back).


"I always try to be available for my patients since I do understand the pain and frustration associated with fertility problems or endometriosis."


"I understand that the economy is very tough and insurance companies do not cover a lot of the services that might help you. I always try to minimize your out of pocket cost while encouraging the most successful and effective treatments available."

NJ Center for Fertility and Reproductive Medicine - Infertility Tutorials

Abnormal Sperm: Testicular Causes

The testicular causes for abnormalities in sperm include

* (1) Thermal exposure

Heat potentially damages spermatogenesis or the sperm that is stored in the epididymis. Normally the scrotal sac hangs from the body so that its contents are actually a few degrees cooler than the man's core body temperature.

Situations associated with increasing the scrotal temperature include the presence of a varicocele, frequent long hot baths, tight fitting underwear that pull the testes up to the body, undescended testes, and sitting (especially on heated seats) for long periods of time (such as a truck driver might do).

A varicocele is a dilatation of the pampiniform venous plexus in the spermatic cord that is not uncommon, occurring in 10-15% of all men regardless of fertility and in up to 25-30% of infertile men.

* (2) Testicular surgery

Removal of a testicle, surgical correction of undescended testes (orchiopexy), repair of testicular torsion, treatment for cancer of the testicle, testicular biopsy, or surgery involving the vas deferens (vasectomy, reanastomosis of blocked portions of the vas deferens) can all impair sperm function.

* (3) Infections

Mumps orchitis, venereal diseases, prostatitis or epididymitis involving the testes or accessory glands (such as prostate) can reduce testicular function. The dead sperm, infectious material and inflammatory cells may result in an increase in a family of molecules known as "oxygen free radicals" that might further damage remaining sperm.

* (4) Radiation (especially involving the pelvis)

The testes are much more sensitive to radiation than the ovaries, so that relatively low levels of radiation can result in an arrest in sperm production. This arrest is occasionally transient with normal production occurring months to years later. In the rat model the time of testicular quiescence between the initial growth of germ stem cells around birth to puberty is especially sensitive to the effects of radiation.

* (5) Trauma

The testes and the blood supply can be damaged either during physical activity (such as sports) or during surgery that is performed in the vicinity of the testicular blood supply.

* (6) Substance abuse

Cigarettes, alcohol, elicit drugs (cocaine, opioid compounds, marijuana) or anabolic steroids (for muscle building) can result in poor quality sperm.

* (7) A general insult to the testes

High fever or viral infection can affect the sperm for up to 3 months following the event. This is because it takes months to produce a mature sperm

* (8) Testicular cancer

Testicular cancer is associated with abnormal sperm concentration in about 50% of men prior to chemotherapy. Following treatment with either chemotherapy or radiation it often takes up to 5 years for a return of function.

* (9) Medications

Chemotherapeutic agents, cimetidine, certain antibiotics (such as erythromycin, tetracycline, nitrofurantoin, sulfasalazine), spironolactone, and aldomet are known to compromise sperm. If a drug interaction is suspected then switching to a comparable alternative medication or discontinuing the medication (only if acceptable to the prescribing physician) might result in improvement in the sperm quality.

* (10) Toxins

Pesticides or some industrial chemicals especially if used in conditions with poor ventilation can alter sperm quality

* (11) Chromosomal abnormalities

Factors active in early development can result in abnormal testicular development, including the Sertoli only syndrome, congenital anorchia (absence of the testes), Klinefelter's syndrome (XXY karyotype), and XX males (crossover of the "testes determining factor" onto an X chromosome)

* (12) DES exposure in utero

There is a possible association with male factor infertility according to available research. More information about this association is needed.


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Eric Daiter, M.D. - Edison, NJ - E-Mail: - Phone: (908)226-0250

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