An otoscope is a medical instrument used by healthcare professionals to examine the ear canal and eardrum. It consists of a light source and a magnifying lens, allowing doctors to see inside the ear clearly. This tool helps in diagnosing various ear conditions, such as infections or blockages. The otoscope typically has a disposable speculum at the end, which is inserted gently into the ear. By shining light into the ear, the doctor can observe any abnormalities or signs of illness. Regular use of an otoscope is essential for maintaining ear health and addressing potential issues early.