MONDAY, March 18 (HealthDay News) -- Here's a caution in the hairless-body craze. Pubic hair removal could boost your risk for a pox infection, French researchers say.

Skin irritation brought on by either shaving, clipping or waxing the genital area could explain the recent increase among healthy adults of a minor sexually transmitted virus called molluscum contagiosum, the researchers suggest.

"Genital hair removal has become a fashion phenomenon in the last decade," noted case study lead author Dr. Francois Desruelles, of the department of dermatology at Archet Hospital in Nice.

"At the same time, the number of cases of molluscum contagiosum has risen," he added.

This association needs to be confirmed by controlled studies, Desruelles said. But he believes the growing popularity of genital hair removal, seen in men as well as women, may raise the risk of molluscum contagiosum.

The practice may also increase the risk for developing genital warts due to infection with papillomavirus, he said.

Desruelles and his colleagues describe their observations in a letter published online March 19 in the journal Sexually Transmitted Infections.

The molluscum contagiosum rash is usually seen in children or people with impaired immune systems, but it is also sexually transmitted. To look into a possible link between the condition and hair removal, the authors studied 30 infected French patients who sought the services of a private skin care clinic in Nice in 2011 and 2012.

The average age of the patients was about 30 years, and 24 of them were men. To varying degrees, all displayed the telltale signs of infection: pearl-like, raised skin bumps. In four cases, the bumps had spread up the abdominal region; in one, they had moved down the thigh.

Almost all of the patients had undergone pubic hair removal, the investigators found. Shaving was the method of choice for 70 percent; 10 percent chose waxing and 13 percent chose clipping.

One-third of the patients suffered from an assortment of other skin issues, such as warts, bacterial skin infections, cysts, scars, and/or ingrown hairs. But the authors theorized that ultimately the pox virus may have spread through "self-infection," meaning scratching irritated skin, which was likely provoked by the hair removal process.