The hand into the vagina generally will not hurt the cervix, but if the nails are long and sharp may also scratch the vaginal wall and cervix, the hand into the vagina is also easy to induce infection, resulting in vaginitis and other gynecological diseases. The length of a woman’s vagina is normally about 10 centimeters, so the hand into the vagina will not touch the cervix, and generally will not hurt the cervix, but if the nails are long and sharp may also scratch the vaginal walls and cervix. It should be noted that although the vagina itself has a certain self-purification effect, can automatically maintain a normal acidic environment to inhibit the growth of bacteria, but there are more bacteria on the hands, if there is no cleaning hands into the female reproductive system may cause infection, thereby triggering gynecological diseases. In daily life to keep the vulva clean and hygienic, every night with warm water to wash the pubic area, change underwear, etc.. Pay attention to a comprehensive diet and nutrition, pay attention to keep warm, avoid catching cold, avoid staying up all night, and so on. If there are uncomfortable symptoms or vaginal bleeding, abdominal pain or vaginal itching after putting your hand into the vagina, it is recommended to go to the hospital to find a professional gynecologist for treatment to avoid delaying the condition.