Let's talk about an horrible custom called dry sex. Even though it's hardly ever spoken about, dry sex is widely practised by African women, in South Africa, Zimbabwe, Zambia, Malawi.
Girls insert harmful chemicals and cleaners (methylated spirits, antiseptics, coarse salt, bicarbonate of soda, snuff, vinegar, talcum powder, ice, alum, Zam-Buk, soil mixed with baboon urine, household detergents and bleach and even shredded newspapers) into their cervix in order to suck up or stop themselves from producing natural moisture within the vagina.
The effect is a dry and tight vagina, which feels better for their men. The concept is supported by the mindset that girls who get wet (which is absolutely natural for women when sexually aroused) are whores. Both men and women see wetness as a sign of promiscuity and dirt. For this reason men don't practise oral sex to their women. Girls who are "too wet" are called chambeshi (the name of large river Zambezi).
This kind of nonsense is taught to young girls and accepted within the culture, making them think their natural bodily functions are horrible, wrong and unnatural. So, many girls practise these harmful behaviors to please the social gender standards set up by the men in their society.
Dry sex is painful too. The chemicals used actually strip the woman's genitals of all natural lubrificants, making the soft tissues swell and causing her vagina to become hot and tight. It makes sexual intercourse abrasive and painful for women, causing abdominal and vaginal pain, burning and itching, rashes and bleeding, making it almost unbereable to do every day activities. The absurd thing is that the use of vaseline as a lubrificant is considered acceptable because it's not the natural juice of a woman. Vaseline is clean, the partner isn't.
Also prostitutes practise dry sex, because their clients prefer it and also because it makes them ejaculate faster.
Long-terms effects are even worse. Dry sex is thought to help spread AIDS. The dryness of the vagina means it's more likely to be lacerated during sex, the natural antiseptic bacilli contained in the vaginal moisture are destroyed and condoms break easier because of the increased friction. Practices like dry sex are probably responsable for the fact that South Africa has the highest heterosexual AIDS-infection rate in the world.
This is a pretty disgusting custom. My vag hurts thinking about it. I'm glad to live in a country where my vagina is not mutilated, infibulated, bleached, dried up or naturally considered whorish.