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A new survey finds that 70 percent of American women have experienced a sexual health issue, and 22 percent felt very or extremely concerned about it.

The survey defined a sexual health issue as any one of the following conditions: lack of desire for sexual activity, inability to become sexually aroused, inability to have an orgasm, pain during intercourse, vaginal dryness, or excessive desire for sexual activity.

Women who reported a sexual health issue said it had an effect on their romantic relationships (44 percent), self-esteem (43 percent) and mental health (42 percent). Sexual health issues also caused stress and anxiety in 66 percent of those surveyed, and affected sleeping habits in 28 percent and weight in 25 percent, the researchers found.

When they wanted to get information about sexual health issues, 35 percent used the Internet and 32 percent turned to their partner. While many women said they’d be comfortable discussing a sexual health issue with a health-care provider, only 18 percent actually saw a health-care provider when they had a sexual health issue, the findings showed.

The survey, released Thursday, was commissioned by the National Women’s Health Resource Center (NWHRC) and the Association of Reproductive Health Professionals (ARHP). The survey was sponsored by Boehringer Ingelheim Pharmaceuticals Inc.

“Given the number of women who experience sexual health issues, it is important to provide them with accurate, unbiased information on conditions they may encounter throughout their lifetime,” Elizabeth Battaglino Cahill, executive director of the NWHRC, said in a news release from the center.

“Fortunately, many sexual health issues can be successfully addressed through education, lifestyle changes, counseling and treatment, and we encourage women to talk with their partner and their health-care provider,” Cahill said.

“Health-care providers today have more resources than ever to help women understand and maximize their healthy sexuality throughout the age span,” noted Dr. Beth Jordan, medical director of the ARHP. “It is critical for women to understand the basics of female sexual response and the myriad, and often emotional, factors that impact their sense of sexuality.”

Having sex every day improves the quality of men’s sperm and is recommended for couples trying to conceive, according to new research.

Until now doctors have debated whether or not men should refrain from sex for a few days before attempting to conceive with their partner to improve the chance of pregnancy.

But a new study by Dr David Greening of Sydney IVF, an Australian center for infertility and in vitro fertilisation (IVF) treatment, suggests abstinence is not the right approach.

He studied 118 men with above-average sperm DNA damage and found the quality of their sperm increased significantly after they were told to ejaculate daily for seven days.

On average, their DNA fragmentation index — a measure of sperm damage — fell to 26 percent from 34 percent, Greening told the European Society of Human Reproduction and Embryology in Amsterdam on Tuesday.

Frequent sex does decrease semen volume but for most men this is not a problem.

“It seems safe to conclude that couples with relatively normal semen parameters should have sex daily for up to a week before the ovulation date,” he said in a statement.

“In the context of assisted reproduction, this simple treatment may assist in improving sperm quality and ultimately achieving a pregnancy.”

Greening said it was likely frequent ejaculation improved the quality of sperm by reducing the length of time they were exposed to potentially damaging molecules called reactive oxygen species in the testicular ducts.