Based on facts, there is no evidence to suggest that penetrative sex causes the vagina to permanently become looser. Medically speaking, statements claiming that the vagina can become loose are inaccurate. During sexual intercourse, the vagina naturally lubricates and its muscles stretch to accommodate penetration by a penis or sex toy. After sexual activity ends, the vagina will naturally return to its original state. So, in conclusion, penetration does not cause the vagina to permanently become loose.

Pregnancy and the process of childbirth through the vagina can cause stretching of the vaginal muscles and weaken the pelvic floor. As a result, the vagina may feel looser and more lax. However, similar to sexual activity, the stretching or laxity of the vagina caused by pregnancy or childbirth is not permanent. However, there is one exception that may occur, which is birth injury to the vagina caused by the use of forceps or vacuum extraction. The use of forceps during childbirth can cause tears in the muscles and vaginal tissue.

The natural aging process affects the entire body of a person, including the condition of the vagina in women. When women enter the perimenopause period, the vaginal tissue begins to thin and dry, while the pelvic floor muscles become more relaxed. As age increases, the levels of estrogen and collagen in a woman's body also decrease. The decrease in estrogen levels results in reduced blood supply to the vaginal muscles, which can affect the elasticity of the vaginal tissue. Meanwhile, the decrease in collagen levels can weaken the pelvic floor. These hormonal and cellular changes cause the vagina to feel increasingly loose and lax with age.

Contrary to common belief, having a tight and firm vagina can actually cause health problems, such as vaginismus. This condition is often associated with health issues that make sexual intercourse very painful. The proper way to address this is by strengthening the muscles around the vagina so that blood flow can increase. One of the recommended exercises to strengthen these muscles is Kegel exercises. Kegel exercises involve contracting and releasing the pelvic floor muscles, which can help strengthen the muscles around the vagina, uterus, bladder, and intestines.