FRIDAY, April 1 (HealthDay News) -- Updated guidelines to keep children happy, safe and healthy when they go to camp were released this week by the American Academy of Pediatrics.

(HealthDay News) -- If a scar becomes too unsightly or interferes with normal movement, you may be a candidate for scar repair surgery, sometimes called scar revision.

(HealthDay News) -- Pre-term labor occurs before the 37th week of pregnancy. About 10 percent of babies born in the United States are considered pre-term, the American Congress of Obstetricians and Gynecologists says.

FRIDAY, April 1 (HealthDay News) -- At-home pregnancy tests can tell you unequivocally in minutes whether a baby is on the way and if it is time to call your doctor.

FRIDAY, April 1 (HealthDay News) -- It's important to keep injury prevention in mind as children begin spring sports activities, says Dr. Steven Greer, of the MCGHealth Sports Medicine Center in Augusta, Ga.

FRIDAY, April 1 (HealthDay News) -- Having a good laugh on April Fool's Day or any other day of the year helps relieve stress and benefits your blood vessels, an expert says.

THURSDAY, March 31 (HealthDay News) -- Betty Kyle knew that after she passed away her daughters did not want to care for her menagerie of four Italian greyhounds, two donkeys, a goat and horse.

FRIDAY, April 1 (HealthDay News) -- Exercise is a good way for people with arthritis to control pain and improve physical function, says an expert.

THURSDAY, March 31 (HealthDay News) -- A 20-year study from Sweden suggests that screening for prostate cancer does not substantially reduce the risk of death from the disease.

FRIDAY, April 1 (HealthDay News) -- Ballet and other types of dancing are challenging activities that can put tremendous strain on certain parts of the body, so it's critical to take steps to prevent injuries, according to the American Academy of Orthopaedic Surgeons.

FRIDAY, April 1 (HealthDay News) -- As warmer weather nears and people gear up to play sports like baseball and soccer, the American Academy of Ophthalmology (AAO) advises athletes that they can reduce their risk of eye injury by wearing protective eyewear.

THURSDAY, March 31 (HealthDay News) -- Foods that contain dyes used to enhance color don't need warning labels, a U.S. Food and Drug Administration advisory panel said Thursday.

FRIDAY, April 1 (HealthDay News) -- A new technology that temporarily zaps away forehead wrinkles by freezing the nerves shows promise in early clinical trials, researchers say.

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

FRIDAY, April 1 (HealthDay News) -- More than one-quarter of women in the United States with two or more children have had children with different men, a new study shows.

FRIDAY, April 1 (HealthDay News) -- About 500 HIV-positive patients a year could get kidney or liver transplants within months instead of years if the U.S. Congress reversed a law that forbids people with HIV from being organ donors after they die, researchers say.

FRIDAY, April 1 (HealthDay News) -- Colds and allergies can cause similar symptoms, and finding out which condition you have is the first step in getting relief, according to the American College of Allergy, Asthma and Immunology (ACAAI).