Whether or not an 18-year-old patient with kidney deficiency can slowly recover should be considered from various aspects such as the degree of the patient’s condition, whether or not it is actively treated, and whether or not the treatment is appropriate, and cannot be generalized. Kidney deficiency is a collective term for kidney yang deficiency, kidney yin deficiency, kidney qi deficiency, and kidney essence insufficiency, which is mostly related to congenital insufficiency, mental factors, too much intercourse, work exhaustion, prolonged illness, and old age and physical decline. Patients with kidney deficiency may show symptoms such as premature aging, forgetfulness, lumbar and knee weakness, fatigue, reduced sexual function, and poor mood. Generally speaking, patients with mild disease can be cured after timely and effective treatment. While severe patients have more stubborn condition and usually need longer treatment time. Patients who are 18 years old with kidney deficiency are advised to seek timely medical treatment.