The word "Guiche" is supposed to mean an opening in French, the actual translation is "window". This piercing is supposed to be a Samoan puberty ritual, but Derek Freeman Professor Emeritus of the Anthropology Department of The Australian National University, one of the world"s foremost authorities on Samoa informed me that he had no experience of this practice in Samoa. The puberty ritual practised in Samoa is subincision, this is where the underneath of the foreskin is cut down to the fraenulum. Professor Freeman stated that this practice has never existed in Samoa, and if it had in the past he would have been aware of it.
Doug Malloy Travelled to Tahiti just before WW2, where he met an Australian sailor who had jumped ship named Reggie Jones. Reggie told Doug about the piercing, and performed the piercing for him.
Doug Malloy said that this piercing originated in Tahiti, the piercing was done at age 12-14 and a leather thong inserted into the piercing, a small weight either a rock or a shell was hung from the thong once the piercing was healed. The procedure was performed by a "Mahu", in Tahiti a Mahu is a transvestite male who has taken on the role of a women, they are highly respected members of society, and they were said to possess magical powers by adherants of the ancient Tahitian religion. However, again I can find no evidence of this practice in any literature about Tahiti.
The ancient Polynesian mariners used to judge their direction by the movement of the waves, the best way to do this was to squat down and feel this movement through the swinging of the testicles. The Raphe Perineum where the Guiche piercing is done is the site of a large amount of nerves, and having a weight hanging from the piercing could possibly have helped the ancient mariners derive their direction, but this is only speculation on my part.
The Hafada piercing is a scrotum piercing on the side of the scrotum, where there is a crease. It is supposed to have originated in Arabia and spread through Northern Africa and the Middle East. The piercing is carried out as a puberty ritual, it is generally done on the left hand side. The piercing was supposedly bought back to Europe by French Foriegn Legionares when they were stationed in what is now Lebanon and Syria.
Scrotum piercings aren't practised by any primitive tribes, at least I can't find any evidence of such practices, it's really a modern western invention. Some people have an incredible number of piercings through their scrotum, Sailor Sid one of the early piercers had 120 scrotum piercings at the time of his death, and he planned to have more.
The Guiche piercing is done through the ridge of skin that runs between the base of the scrotum and the Anus. This site contains a very large group of nerves and is very sensitive, in men pressure here stimulates the prostate gland, but even in women the piercing is very pleasurable when it's pulled on.
Hafada piercings are done on the upper portion of the scrotum where there is a crease of flesh, scrotum piercings can be done anywhere on the scrotum but are usually done along the crease of the scrotum.
Both piercings are usually done using ball closure rings, however they can be performed using barbells. Some piercers recommend that Guiche piercings be performed using a banana barbell as this makes healing easier. After they are healed a variety of jewellery can be inserted, most people find that it's very pleasurable to hang weights from these piercings especially the Guiche piercing.
Both of these piercings are notoriously hard to heal, the groin is very moist and prone to bacterial and fungal infections even without the piercings. Another reason for the poor healing is the constant movement to which the piercings are subjected, it must be remembered that both piercings originate in areas where men wear very loose clothes and the weather is warm all year round.
The Guiche is one of the hardest piercings to heal and is notoriously prone to migration.
THE NUMBER ONE REASON FOR INFECTION IS TOUCHING AND PLAYING WITH THE PIERCING, ONLY TOUCH THE PIERCING WHEN YOU ARE CLEANING IT!
Of the two of these piercings the Guiche piercing is the more effective of the two providing a very nice degree of pleasure if it's pulled on during sex, if it's pulled on just prior to orgasm it heightens the degree of orgasm. Scrotum piercings are supposed to be quite pleasurable when they are played with during sex, however both of these piercings shouldn't be pulled on until they are fully healed.