Little finger single fold how to do?

summary

There are three fold lines in normal palm; The distal transverse fold line, the proximal transverse fold line and the longitudinal fold line of thenar. Sometimes, the distal transverse fold line and the proximal transverse fold line are connected to form a single fold line across the whole palm, which is called ape line, and is called Tongguan hand in China. However, sometimes the degree of contact is different and can be divided into various variants. The incidence of foul line is 3.53% - 4.87% in the normal population of China. The single fold of little finger usually appears in chromosome genetic diseases.

Little finger single fold how to do?

Chromosome genetic diseases: trisomy 21, trisomy 18. It is a disease caused by chromosomal structural aberration. The direct cause of the formation is that chromosome 21 does not separate during meiosis, resulting in abnormal eggs. The patient's karyotype is 42.xx (XY), + 21. High age (over 35 years old) and low age (under 20 years old) were risk factors of trisomy 21 syndrome. It was also reported that high age of father was also related. At present, the exact pathogenesis of trisomy 21 syndrome is not clear.

Dermatoglyphic changes are related to some chromosomal abnormalities, congenital diseases and unexplained syndromes, but their changes are not specific, so they can only be used as the primary screening of collateral evidence or diseases for further diagnosis. The single fold of little finger is related to the chromosome in human body, which is a kind of variation of chromosome. The probability of variation is very small, but there are still some, but it will not affect people's living habits. It won't bring any trouble to life.

(1) Trisomy 13: radial dustpan and arcuate stria increased significantly, so TFRC value was low. Half of the patients' hands were penetrating hands. About 81% of the patients had t ", and 42% of the patients had fibular arch in the ball area of the great toe（ 2) Turner's syndrome: the TFRC value of the patient increased significantly, the ∠ ATD increased, the Tongguan hand also increased, the big dipper and far dustpan appeared in the thumb（ 3) Klinefelter syndrome: increased arcuate stria and decreased TFRC（ 1) Trisomy 21 syndrome (congenital stupidity): the frequency of finger shaped lines is reduced, while the number of skip shaped lines is increased, especially the proportion of Chi Chi Ji is high, TFRC is less, the little finger is often a single finger fold line, about half of the patients have through hand, ∠ ATD < 60 °， More than 70% of the patients had tibial arcuate stria（ 2) Trisomy 18 syndrome: the proportion of arcuate lines of fingers in patients is increased, more than 7 fingers in 80% patients are arcuate lines (only about 1% in normal people), so the TFRC value is low, most of them are through hand, about 25% of patients are t ", and about 40% of patients have a single finger fold line on the little finger.

matters needing attention

The treatment and prevention of single fold of little finger have the following points: 1. Strengthen genetic counseling and do a good job in prenatal diagnosis. 2. Population census and general prevention of genetic diseases should be carried out, and the cases diagnosed in the census should be prevented and treated as soon as possible. 3. The carriers of pathogenic genes and chromosomal translocations were detected, and their fertility was guided. 4. Delayed clinical onset in individuals with genetic defects. 5. Do a good job of classification guidance of marriage and childbirth. 6. Active treatment of patients with genetic diseases, reduce their pain. 7. Do a good job in environmental protection.