Men who overindulge in sex may have sexual dysfunction, and may also cause urinary tract infections or neurasthenia. 1. Sexual dysfunction: men usually appear in high frequency sexual behavior after overindulgence, will make the sexual organs in a state of long-term excitement, easy to appear sexual responsiveness, decreased libido, erectile dysfunction, sexual pleasure decreased sexual dysfunction symptoms, the symptoms are more serious may also induce erectile dysfunction. 2. urinary tract infection: men overindulge in sexual intercourse will make the sexual organs repeatedly and persistently congested, easy to cause urinary tract infection, induced prostatitis, seminal vesiculitis and other diseases, may appear blood sperm, discomfort in the pubic area, back pain and other symptoms. 3. neurasthenia: usually, men in the orgasm, the brain will be in a state of high excitement, excessive indulgence may make the brain excitation is too frequent, easy to cause dizziness, headache, drowsiness, sleepy, dreamy and other symptoms of neurasthenia. Men should usually maintain a healthy sex life, avoid overindulgence, so as not to cause adverse effects on the body.