India, Oct. 14 -- In Tangste village of Leh, health worker Noor Jahan gathered ASHA colleagues for an awareness camp. It was their last chance before nomadic families began migrating across the Changthang plateau. Each spring, she said, women leave without access to doctors or clean water. By summer, many return with the same complaints: itching, infections, and burning sensations in their genital area.

"These women often come with complaints of vaginal itching and abnormal discharge," said Community Health Officer Dinchin Dolkar, who has seen such cases repeatedly among nomadic women. "A few days ago, two women were referred to Leh. At private clinics, they were diagnosed with yeast and urinary tract infections and prescribed antibiotic...