Healthy relationships
Learning Center
Kratom: Unsafe and ineffective
Users claim kratom lifts mood and boosts energy, but there are many safety issues and questions about whether it works. Learn more before trying it.
Kratom for opioid withdrawal: Does it work?
Kratom is promoted as an aid in overcoming withdrawal from opioid medications, but research suggests that it leads to more health problems than it solves.
Klinefelter syndrome
This genetic disorder occurs when a male is born with an extra copy of the X chromosome and may result in low testosterone production and infertility.
Kegel exercises for men: Understand the benefits
Men benefit from Kegel exercises too. Follow these tips to strengthen your pelvic floor muscles.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
Infidelity: Mending your marriage after an affair
Infidelity doesn't necessarily mean a marriage is over. Consider these steps to heal and rebuild a relationship.
Infant jaundice
Learn about this common condition in newborns, especially those born preterm. With close monitoring and light therapy, complications are rare.
Hypospadias
Hypospadias is a birth defect in which the opening of the urethra is located on the underside of the penis instead of the tip. Learn about treatment.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
Hormone therapy for prostate cancer
Find out what to expect during testosterone-blocking therapy. Learn about choices, including medicines and surgery.
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