Male baldness has no obvious relationship with kidney function. There are many causes of male baldness, including spot baldness, seborrheic alopecia, tinea capitis and other causes. 1. Pemphigus: Pemphigus may be related to heredity, autoimmune diseases and emotional stress, etc. Baldness caused by this condition requires topical or systemic medication, and the hair can regenerate but there is a risk of recurrence. 2. Seborrheic alopecia: it may be related to genetic factors, dihydrotestosterone, a metabolite of androgens, etc. It is often accompanied by increased dandruff, itchiness, and greasy scalp. 3. Tinea capitis: Tinea capitis is mainly due to the occurrence of fungal infections in the scalp leading to hair loss, the formation of hair reduction, can be infected through contact with diseased persons or diseased animals, contaminated items. There is no obvious relationship between male baldness and kidney function, it is recommended to actively seek medical advice and follow the doctor’s instructions for examination and treatment.