Fusion of the feet (Sympodia), Sirenomelia (Sirenomelia)

Sympodia and Sirenomelia are rare but serious birth defects that can lead to multiple health problems. Both of these diseases are associated with abnormal development of the fetal lower limbs.

Sirenomelia is a rarer form of these defects, which is characterized by complete fusion of the legs and absence of feet. This can lead to limited movement and problems with digestion and urination. Additionally, a fetus with sirenomelia may only have one kidney and intestines, which can also cause serious problems.

Fusion of the feet (Sympodia) is a less rare form of the defect, which is characterized by the fusion of the feet and lower extremities. A fetus with this defect may have missing feet and toes and may be malformed. This can lead to problems walking and standing, as well as deformities in other parts of the body.

The reasons for the development of these defects are not fully understood, but some studies have linked them to genetic mutations and environmental influences on fetal development. Often these defects are discovered during ultrasound scans during pregnancy.

Treatment for these defects may include surgical procedures such as cutting fused limbs and plastic surgery to restore the normal shape of the legs. However, in most cases, treating these defects is a big challenge and may not lead to complete restoration of health.

Overall, foot fusion and sirenomelia are serious medical problems that can cause lifelong health problems. Therefore, it is important to obtain regular consultations with doctors and conduct timely ultrasound examinations during pregnancy in order to identify such anomalies of intrauterine development and take timely measures to eliminate the problems.

**Foot fusion** is a congenital malformation in which the feet or ankle joints do not develop or are absent (synonymous with amputation of the feet and amniotic ligation, double contracture of the sepals)

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Modern medical technologies make it possible to save the lives of children born with Fusion of the Foot or Sirenomelia. These are complex pathologies that are one of the most common defects of intrauterine anlage. They manifest themselves in the form of fusion of the lower extremities, which leads to the absence of feet in the child. Such congenital anomalies may be