Lymphogranuloma inguinale. As the lymph nodes grow in size, they become less sensitive and mould a conglomerate mass. The skin over the lymph nodes gains ill bluish discoloration. First, little lesions appear and later they are followed by the bigger ones. The lymph nodes are experiencing inflammatory process: immune system fights the infection, defense cells die, thus forming pus.

HIV symptoms in men: Lymphogranuloma inguinale