<prompt> Schwartz s sign is seen in:OtosclerosisMenieres diseaseRetrocochlear lesionNone  <response>: Ans. a OtosclerosisRef: Dhingra 5th Ed. . 461, 98-99 Schwartz sign is a pink reflex, seen through intact tympanic membrane, in the area of oval window. It indicates active otosclerosis usually during pregnancy. Otosclerosis is an abnormal bone growth in the middle ear that causes hearing loss.Symptoms Hearing loss Paracusis willi: An otosclerotic patient hears better in noisy surrounding. Tinnitus Vertigo SpeechSigns Schwartzs sign: A reddish hue seen on the promontory through the tympanic membrane. This is indicative of active focus with increased vascularity. Pure tone audiometry shows loss of air conduction, more for lower frequencies Carharts notch: there is a sudden dip at 2000 Hz in bone conduction curve.Also Know Dont get confused between schwartz sign and Schwartz surgery. Schwartz surgey is a simple mastoidectomy or cortical mastoidectomy in case of mastoiditis. 