Doctor Profile: Dr. Zhang Guodong, a Beijing Xiduo medical beauty expert, graduated from Shanxi Medical University and has devoted himself to the field of hair transplantation for many years. He is good at the treatment of postpartum alopecia, seborrheic alopecia, hair encryption, hairline adjustment, artistic planting, etc. He is skilled, pays attention to aesthetic design, and has a natural postoperative effect, which is deeply trusted by patients.