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  • Zika

    Zika is a virus caused by a bite from the Aedes mosquito. It is contagious and increases the risk of…

  • Milk and cheese on a table. Lactose intolerance is a condition that causes stomach discomfort. It’s your body reacting to the sugar in milk (or other dairy).

    Lactose Intolerance

    Lactose intolerance is a condition that causes stomach discomfort. It’s your body reacting to the sugar in milk (or other…

  • Motion Sickness

    Motion sickness is feeling triggered by movement. It occurs in cars, buses, trains, planes, or boats. It also can happen…

  • Tuberous Sclerosis

    Tuberous sclerosis is a rare disease that causes tumors, or growths, in the brain and other organs. They are usually…

  • Strabismus

    Strabismus is an eye disorder. It affects the muscle control in your eyes. The eyes don’t line up properly. Instead,…

  • Male struggling with premature ejaculation sits on edge of bed with girlfriend in the background.

    Premature Ejaculation

    Premature ejaculation happens when an individual has an orgasm sooner than wanted. It can happen before or shortly after…

  • Busting Period Myths

    When it comes to your period, you may have more questions than answers. When does it start? How often does…

  • Shaken Baby Syndrome (Abusive Head Trauma)

    Abusive head trauma (shaken baby syndrome) is a form of child abuse that can be deadly or leave a baby…

  • Doctor talking to patient

    Anal Fistulas

    An anal fistula is an abnormal connection that forms between the anus and the skin outside of it. It usually…

  • Person pushes hair back to reveal a bald spot. Alopecia areata is a form of hair loss. It’s a non-life-threatening disease of your immune system that affects the hair on your scalp.

    Alopecia Areata (AA)

    Alopecia areata is an autoimmune disease that causes you to lose small, round patches of hair on your head.

  • Family holding newborn, leaving the hospital

    Bringing Your Baby Home

    Welcoming a baby into your home is a big event. It can be scary if it is your first baby…

  • X-ray of woman’s pelvis, showing bladder stones

    Bladder Stones

    Bladder stones are small crystals that form in your urine. They are hard and become trapped in your bladder. They…

  • Asthma in Kids

    Asthma is a disease that often starts in childhood and makes it difficult for your child to breathe.

  • father and daughter sitting on couch reading a book together

    Being a Single Parent

    Being a single parent can be challenging. It can also be very rewarding. It’s important to find a way to…

  • Hepatitis A

    Hepatitis A (Hep A) is liver inflammation caused by the hepatitis A virus. It isn’t typically as serious as hepatitis…

  • Close-up of child with canker sore on inside of lip

    Canker Sores

    Canker sores are small, thin sores in your mouth. You might get them on the inside of your lips or…

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    The following editorial policy applies to all health content on familydoctor.org, the AAFP’s patient education website.