According to statistics of the World Health Organization (WHO), in Vietnam in particular and in the world in general, the rate of infertility is increasing.Vietnam is one of the countries with high infertility rates in the world.Statistics of the Ministry of Health of our country show that each year there are about 1 million pairs of infertility, about 7.7%.In particular, couples aged less than 30 accounts for 50%.

According to Dr. CKII Nguyen Van Phuc, Department of Male Hoc, Central National Hospital 108, most, we often think that infertility is due to women.However, modern science today has proven that the infertility rate in men and women is equal.The bad habits daily contribute to the risk of infertility in men.

Here are the causes that directly affect the reproductive function of men.

1. Smoking

According to statistics of the World Health Organization (WHO), one third of the world population over 15 years of age smoking.Smoking has a direct impact on the reproductive function of both men and women.Studies show that men who smoke have a lower sperm and sperm quality than those who do not smoke.

The longer the smoking time and the more smoking (a day of smoking over 20 cigarettes), the higher the risk of infertility.In addition, smoking is also the cause of erectile dysfunction in men.

2. Use alcohol

Drinking a lot of alcohol affects some hormones in men (testosterone, LH, FSH) that hinders sperm growth.

The toxins in alcohol and beer can damage the DNA structure of sperm, increasing the risk of deformities, reducing the quality and quantity of sperm.

3. Eat plenty of fried food, grease

According to scientists, in flour fried dishes that contain acrylamide ingredients, this substance makes sperm quality decrease and can cause some cancers.

In addition, fried foods have a unsaturated fatty acid.This substance directly affects the male hormone that interrupts the process of sperm production in men.

4. Use stimulants

Drugs, especially marijuana, directly affects the coincidence.Marijuana weakens sperm's ability to move, making it difficult for them to access eggs to fertilize.Using drugs can damage the DNA of sperm, increase the risk of deformities and reproductive problems.

5. Stay up late

Studies show that staying up late after 0 hours causes men to reduce sperm quality.A 2017 study published on Medical Science Monitor showed that healthy men who slept less than 6 hours had weakened sperm force.Sperms from sleepy men have a lower survival rate.

6. Wear tight pants, bathing too hot

This habit accidentally increases the testicles and reduces sperm quality.Therefore, men should not soak in hot baths for too long and wear spacious and airy underwear.

7.Or stressful mind

Regular stress can affect testosterone hormones and LH, which affects sperm quality.In addition, psychological issues that cause sex dysfunction such as erectile dysfunction, premature ejaculation, difficult to ejaculate.

8. Overweight, obesity

Overweight, obesity has a great influence on the reproductive function of men.The excess fat around the abdomen and thighs can increase the scrotum temperature, where sperm production makes sperm quality decline.