Simons R, et al. - A retrospective review was performed in 2 central London genitourinary medicine clinics of men who have sex with men (MSM) with Lymphogranuloma venereum (LGV) in whom less than 21 days of doxycycline was used initially, to gain the evidence base for the current guidelines suggesting treatment with 21 days of doxycycline. In most cases of LGV, 7 to 14 days of doxycycline was effective with negative test of cures (TOCs) in 59 of 60 patients. Data thereby suggest the efficacy of 7 days of doxycycline in achieving cure of rectal LGV in most MSM.