Covid-19: vaccine can lead to lymph node swelling and misleading mammogram results Women should postpone routine mammograms until six weeks after their second vaccine dose, unless there is a history of cancer Pink Caravan provides free health screen checks for both women and men. Pink Caravan riders at Sheikh Zayed Grand Mosque in Abu Dhabi. All photos by Reem Mohammed / The National Since its inception in 2011, Pink Caravan combines its educational messaging with action in the form of free health screen checks for both women and men. Pink Caravan has provided 64,012 free medical screenings, support of 795 medical clinics, and over 300,000 volunteering hours.