- Loeys-Dietz syndrome [DOID:0050466]
A syndrome that is characterized by increased risk of aortic aneurysm and dissection, elongated limbs, hypertelorism, bifid uvula and easy skin bruising due to mutations in TGFB3 that results in connective tissue defects.
- congenital myasthenic syndrome 18 [DOID:0110683]
A congenital myasthenic syndrome characterized by autosomal dominant inheritance of presynaptic neuromuscular junction defects, early-onset muscle weakness, easy fatigability, delayed psychomotor development and ataxia that has_material_basis_in heterozygous mutation in the SNAP25 gene on chromosome 20p11.
- vitamin K deficiency bleeding [DOID:11249]
A nutritional deficiency disease that is characterized by easy bleeding due to an inability to form blood clots caused by vitamin K deficiency, occurs most commonly in newborns, and has_material_basis_in deficiency of vitamin K secondary to liver prematurity, lack of vitamin K in a breastmilk diet, largely sterile gut, malabsorption, diarrhea, chronic illness, menorrhagia, chronic kidney disease, and some medications.
- factor VII deficiency [DOID:2215]
A blood coagulation disease that is characterized by easy bleeding, has_symptom epistaxis, bleeding of the gums, menorrhagia, and occasionally hemarthrosis, and has_material_basis_in autosomal recessive inheritance of mutation in the F7 gene, which encodes coagulation factor VII, an important factor in the clotting cascade.
- vascular type Ehlers-Danlos syndrome [DOID:14756]
An Ehlers-Danlos syndrome that has_material_basis_in heterozygous mutation in the COL3A1 gene on chromosome 2q32 and that is characterized by the association of unexpected organ fragility (arterial/bowel/gravid uterine rupture) with inconstant physical features as thin, translucent skin, easy bruising and acrogeric traits.
- congenital myasthenic syndrome [DOID:3635]
A neuromuscular junction disease that is characterized by weakness and easy fatiguability resulting from a genetic defect at the junction where the nerve stimulates muscle activity that result in muscle weakness and may affect nerve cells (presynaptic), muscle cells (postsynaptic) or the space between nerve and muscle cells (synaptic).
- Ehlers-Danlos syndrome musculocontractural type 1 [DOID:0080736]
An Ehlers-Danlos syndrome that is characterized by distinctive craniofacial dysmorphism, congenital contractures of thumbs and fingers, clubfeet, severe kyphoscoliosis, muscular hypotonia, hyperextensible thin skin with easy bruisability and atrophic scarring, wrinkled palms, joint hypermobility, and ocular involvement and that has_material_basis_in homozygous or compound heterozygous mutation in the CHST14 gene on chromosome 15q14.
- nemaline myopathy 1 [DOID:0110926]
A nemaline myopathy characterized by onset typically in early childhood of mildly delayed motor development, hypotonia, generalized muscle weakness, and weakness of the proximal limb muscles and neck muscles, resulting in difficulty running and easy fatigability that has_material_basis_in heterozygous, homozygous, or compound heterozygous mutation in the TPM3 gene on chromosome 1q21.
- factor XIII deficiency [DOID:2211]
A blood coagulation disease that is characterized by easy bleeding, has_symptom prolonged umbilical cord bleeding, epistaxis, bleeding of the gums, menorrhagia, recurrent miscarriages, abnormal scar formation and wound healing, and hemarthrosis, and has_material_basis_in autosomal recessive inheritance of mutation of the F13A1 or F13B gene, which encodes Factor XIII, formally known as fibrin stabilizing factor.