Home >> Health >> Young men's health >> Body changes - Men

When your hormones start to kick in (around the age of 11 - 14 but sometimes sooner or later) you'll probably start to notice some body changes.  Here's how it goes,

• Your muscles and bones start to become thicker and stronger. 
  
• You'll gain weight and get taller. 
  
• Hair will start to grow on your face, your legs, under your arms and around your pubic area. 
  
• You may start to get spots on your face, neck, chest and back. 
  
• Some men's voices change over night, while others take a few months to get deeper. 
  
• Your penis grows longer and thicker while your testicles get bigger.  Your testicles are starting to produce more sperm, which means that you can fertilise an egg and cause a pregnancy during unprotected sex. 
  
• Although you can have erections from the time you're very young until you're very old, you may start to notice them a lot more, with all of the other body changes that are happening. 
  
• An erection is caused by blood rushing into the penis.  It can happen any time, but you can try sitting down and concentrating on something else if it happens at a bad time. 
  
• You'll also start to ejaculate (or have an orgasm), which means that when you are sexually excited, your muscles at the base of the penis will contract, and semen (containing sperm) will come out of the end of your penis.  This can start to happen around the age of 10 - 18.
  
• Some young men ejaculate during masturbation or in their sleep - this is normal and nothing to worry about.

Because these changes mean that you will be physically able to have sex (and get someone pregnant), you may be thinking about sexual relationships and want more information.  Look on this website for more information about relationships, sexuality, contraception and sexually transmitted infections.  You might also want to have a look at the listed websites or contacts.

 

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