Penis can be enlarged and thickened, but the method is different for different age groups, and the size of penis is related to many factors, such as heredity, nutritional status, endocrine and other factors. During puberty, you can enhance your diet and life management in order to promote penis development. For men after adulthood, it is mainly through surgical methods. 1. Puberty: Men in puberty, whose bodies are in the developmental stage, can have a balanced diet, moderate exercise and sufficient sleep to improve their nutritional status and promote the normal secretion of sex hormones, which in turn promotes the development of the penis. 2. Adulthood: For adult men, the penis basically does not have the possibility of secondary development. If there is a need for enlargement, you can consider penile enlargement and lengthening. If men have the need for penis enlargement, they should go to regular hospitals, listen to the doctor’s advice, choose a feasible program, and do not abuse drugs privately, so as to avoid adverse effects.