Right-sided hemicircular canal hypoplasia is not self-healing. The semicircular canal is an inner ear sensory device related to maintaining posture and balance. When it becomes dysfunctional, the body will experience a weakening of balance and attacks of vertigo; clinically, the diseases that lead to semicircular canal dysfunction mainly include ear trauma, ear inflammation, Meniere’s disease, and idiopathic deafness. 1. Ear trauma, when the ear is injured by external impact, the semicircular canals will also be damaged, resulting in hemicircular canal hypoplasia, depending on the specific degree of injury, may require surgical treatment. 2. Inflammation of the ear, the most common is otitis media, severe otitis media affects the bone labyrinth and the semicircular canals, resulting in semicircular canal hypoplasia, which is mainly treated with antibacterial drugs. 3. The cause of Meniere’s disease is still unclear, may be related to the imbalance of endolymphatic fluid production and absorption, manifested in the membrane labyrinth accumulation of water, resulting in the semicircular canal hypoplasia, diazepam, ipecac, and other medications, but also can be treated surgically. 4. Idiopathic deafness may be related to viral infection, neoplastic lesions, autoimmune diseases, drug poisoning, inner ear ischemia and other factors. Nutritional nerve and glucocorticoid treatment is mainly adopted. It should be noted that when the primary disease of the ear is cured, the hemianopsia is not necessarily fully recovered, which is caused by the remaining hemianopsia damage, therefore, it is important to treat the hemianopsia as early as possible when it is found to improve the prognosis.