Why do balls tighten and loosen?
The balls (testicles) are held in a bag of skin, called the scrotum. The scrotum’s job is to protect the testicles. This includes making sure they don’t get too hot or too cold. The scrotum tightens when it’s cold – moving the testicles closer to the body to keep them warm. And it loosens when it’s hot – moving them away from the body to cool them down. Your testicles also change shape and move closer to the body because of sexual arousal.
Can sperm build-up cause pain?
No. You continually produce new sperm, and old sperm that isn’t ejaculated is broken down naturally and absorbed by your body. So, there is no build-up of sperm if you don’t ejaculate and it doesn’t cause pain or any other problems.
Why do some guys get harder than others?
You may worry about how hard your penis gets, but keep in mind that most people occasionally have a problem getting a firm erection. To get an erection, you need enough blood to flow in and out of the penis. Nerves need to work properly, and you need to have enough testosterone and a high enough sex drive (libido). Issues with any of these things can cause problems with getting an erection. Certain medications, your stress levels, tiredness and other factors can also make it more difficult. Because problems getting and keeping an erection (erectile dysfunction) can be a sign of an underlying health condition, see a doctor if you keep having problems.
Many changes happen in your body when you get sexually excited.
Signs of male arousal include an erection and the scrotum getting tighter.
Different signs of arousal happen in each of the 4 stages of the sexual response cycle. Some sexual problems, like not keeping an erection or ejaculating too quickly, are common.
speak to a doctor if have any sexual problems that you’re worried about.
Dr Albert Donkor.