Since many of these conditions have an autosomal recessive inheritance pattern, they are rare and can be associated with consanguinity.Tests that can be used to find the cause of collodion baby include examination of the hairs, blood tests and a skin biopsy. Associated medical problems
Overheating: The scaling of the skin prevents normal sweating so hot weather and/or vigorous exercise can cause problems. Eye problems: The eyelids can be pulled down by the tightness of the skin and this can make eyelids (but usually just the lower one) very red and they are prone to drying and irritation. Constriction bands: Very rarely children with this condition can have tight bands of skin around their fingers or toes (usually at the tips) that can prevent proper blood circulation to the area. Hair loss: Severe scaling of the skin on the scalp can lead to patchy loss of hair, but this is rarely permanent. Genetics
This condition is an autosomal recessive genetic disorder,: 561  which means the defective gene is located on an autosome, and both parents must carry one copy of the defective gene in order to have a child born with the disorder. Carriers of a recessive gene usually do not show any signs or symptoms of the disorder. One form of ichthyosis lamellaris (LI1) is associated with a deficiency of the enzyme keratinocyte transglutaminase. Genes involved include:

Diagnosis
Treatments
As with all types of ichthyosis, there is no cure but the symptoms can be relieved.
In more severe cases, in-vitro fertilization with intracytoplasmic sperm injection may be used. Intentional induction
Retrograde ejaculation can be deliberately induced by squeezing the urethra at the base or applying pressure to the perineum during orgasm. The retrograde-ejaculated sperm goes into the bladder and is excreted with the next urination. Contraception
In certain cultures, such as in the Oneida Community, retrograde ejaculation is performed as a form of primitive male birth control (coitus saxonicus). However, the practice is not considered a reliable method compared to most modern types of birth control. Besides the  lack of protection from STDs, the technique itself can be hard to execute correctly during the act of coitus, especially if the male does not fully understand the anatomy involved. Many doctors also do not recommend coitus saxonicus due to the risk of putting pressure on the pudendal nerve, which can cause numbness in the penis. Taoism
Taoists and some fields of alternative medicine recommend and teach deliberate retrograde ejaculation as a way of "conserving the bodys energy". It was believed that retrograde ejaculation caused the sperm to travel into the head and nourish the brain, or that energy is conserved physically by keeping the sperm (and thereby, the "intelligence" that created it) in the body. However, there are other Taoist perspectives on the general subject of ejaculation and techniques that do not involve retrograde ejaculation (see Taoist sexual practices). See also
Aspermia
Ejaculatory duct obstruction
Hypospermia
Internal urethral sphincter
Spermaturia

Notes


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