Concerns about size, Erectile dysfunction, and Premature ejaculation are very common, and in most cases size is within the normal range and not a medical problem. Focus on lifestyle changes like regular exercise, good sleep, reducing stress, and avoiding excess porn or smoking; practice techniques like the start?stop method to improve control. If issues persist, a doctor can help with proper evaluation and may prescribe medicines such as Sildenafil or Dapoxetine if needed.