Knee replacement surgery may be a solution for disabling arthritis, pain caused by other medical problems, or a tumor affecting the knee.

But if you've got certain risk factors, your doctor may advise against the surgery, the U.S. National Library of Medicine says. Here are some examples:

When your belly feels stretched and uncomfortably full, you've probably got a case of bloating.

The U.S. National Library of Medicine suggests how to prevent bloating:

When alcohol adversely affects your relationships, your work or your home life, it's time to take a look at your drinking habits.

The American Academy of Family Physicians says warning signs of problem drinking may include:

Babies and toddlers are prone to tantrums, particularly during the second year of life when they don't fully know how to express their emotions and needs.

The Nemours Foundation suggests these additional triggers for temper tantrums:

If you suspect that a loved one is anorexic, the topic can be difficult to discuss.

Womenshealth.gov offers these suggestions for approaching a loved one about anorexia: