19 years old penis 12 cm is normal

19-year-old penis 12 cm is a normal length. Under normal circumstances, China 19-year-old male penis length in the weak between 4.5 - 8.6 cm, erect length between 7 - 16 cm. Therefore, the penis 12 cm whether in a weak state or erect state, are within the normal range. It should be noted that the size of the penis varies from person to person, affected by a variety of factors, including genetics, nutrition, hormone levels, etc. Moreover, the size of the penis is not the only standard to measure sexual ability, sexual ability is also related to factors such as sexual skills and psychological state. For 19-year-old men, the penis is still developing and may continue to grow. If you are not satisfied with your penis size, consult a professional doctor for more information about penis development and sexual health. At the same time, maintaining a healthy lifestyle, such as a balanced diet, moderate exercise, and reducing smoking and drinking, will help promote penis development and health. In addition, if there are problems such as abnormal penis development and erectile dysfunction, you should seek medical attention in time for professional diagnosis and treatment. The doctor will develop personalized treatment plans according to the specific situation to help the patient solve the problem.