Having more than 11 moles on one arm could signal someone is at increased risk of developing melanoma, the BBC reports.
Researchers said this could give GPs a quick way to identify people most at risk of having skin cancer.
The study showed that women with more than 11 moles on their right arm were very likely to have more than 100 over their whole body – already known to put people at increased risk of the disease.
Consultant dermatologist and study co-author Veronique Bataille said that if a patient was worried about an abnormal mole, counting moles on one arm ‘might ring alarm bells’ and highlight those patients who should be seen by a specialist more quickly.
Patients have shown ‘remarkable’ improvements with the drug, the report says.
Lead investigator Dr Charbel Moussa, from Georgetown University Medical Centre in Washington DC, said: ‘We’ve seen patients at end stages of the disease coming back to life.’
Meanwhile, breast pain is preventing women from going horse riding, according to the Telegraph.
Turns out that it’s only the fourth biggest barrier to women getting in the saddle – but the study fits with other research that showed one in five women are ‘put off exercise because of their breasts’, the paper highlights.