(1) masturbate with a foreign body
Some teenagers like to insert pens, straw stalks, hairpins, plastic threads, etc. Enter the urethra to get pleasure, which leads to intentional or unintentional foreign bodies in the urinary system, especially in men. When foreign bodies cause urethral or bladder neck obstruction, it can cause dysuria or urinary retention, accompanied by urinary system infection, and finally form urinary calculi. When underage women masturbate, they will stuff pens, chopsticks, nuts and beans into their vaginas out of curiosity. If the object is large, it cannot be taken out by itself, which may cause infection, bleeding and long-term pain.
(2) the wrong way to masturbate
Some men have taken all kinds of wrong ways from the beginning of masturbation, such as pressing the penis downward and backward, sandwiched between their legs, and getting a certain pleasure through this extrusion, without friction and without pursuing ejaculation climax. Because self-stimulation was obtained in this way for a long time, the sperm was inhibited, which made it impossible to ejaculate after marriage. This may lead to male infertility.
(3) Sexual asphyxia
It is a kind of abnormal masturbation. Self-stimulation, often accompanied by a variety of methods to cause brain hypoxia, so that orgasm in a semi-asphyxiated state, in order to increase the degree of sexual pleasure. Improper use may lead to suffocation and death.
Common masturbation methods for men
1, friction
Lie prone, read pornographic literature, turn your hips, and let your penis rub against bedding, pillows and other objects. Or put a pillow between the abdomen and the penis, and insert the penis back and forth between the pillow and the sheet. This method can be tried in the morning when the penis becomes hard.
2. Penile stimulation
Use some lubricant or saliva when pulling, and hold the erect penis up and down with one hand or both hands. Some men like to reach the top of the glans penis every time they pull, often accompanied by holding the testicles with one hand. You can also wrap the penis with a soft cloth for pulling. Another way is to tighten the scrotum with one hand, but not too heavy, and pull the penis with one hand. Some men like to act quickly.
3. Trunk friction
Lie down and rub the trunk between the glans and testicles. In this case, you can masturbate for a long time.
Again, if a man masturbates properly and occasionally, it will not do any harm to his body, and even have some benefits. However, masturbation once or more a day, within a week, not only damages renal function, but also may damage sexual function. Especially after marriage, men should never think that they are physically strong and masturbate several times a day. Don't regret when something really goes wrong!