Poor suck
An inadequate sucking reflex, resulting in the difficult of newborns to be breast-fed.
Also called: Poor suck, Poor sucking, Sucking weakness.
Conditions associated with poor suck
The following conditions have been associated with poor suck in medical literature. This is informational and not a diagnosis.
3-methylglutaconic aciduria type 8
3-methylglutaconic aciduria type 8 is a medical condition that may be associated with various symptoms and sig...
Alobar holoprosencephaly
Alobar holoprosencephaly is a medical condition that may be associated with various symptoms and signs....
Angelman syndrome
Angelman syndrome is a medical condition that may be associated with various symptoms and signs....
Angelman syndrome due to paternal uniparental disomy of chromosome 15
Angelman syndrome due to paternal uniparental disomy of chromosome 15 is a medical condition that may be assoc...
Congenital myasthenic syndrome
Congenital myasthenic syndrome is a medical condition that may be associated with various symptoms and signs....
Cornelia de Lange syndrome 1
Any Cornelia de Lange syndrome in which the cause of the disease is a mutation in the NIPBL gene....
Crigler-Najjar syndrome
Crigler-Najjar syndrome is a medical condition that may be associated with various symptoms and signs....
DEGCAGS syndrome
DEGCAGS syndrome is a medical condition that may be associated with various symptoms and signs....
DYRK1A-related intellectual disability syndrome due to 21q22.13q22.2 microdeletion
DYRK1A-related intellectual disability syndrome due to 21q22.13q22.2 microdeletion is a medical condition that...
Early infantile developmental and epileptic encephalopathy
Early infantile developmental and epileptic encephalopathy is a medical condition that may be associated with ...
Hao-Fountain syndrome due to 16p13.2 microdeletion
Hao-Fountain syndrome due to 16p13.2 microdeletion is a medical condition that may be associated with various ...
Hyperlysinemia
Hyperlysinemia is a medical condition that may be associated with various symptoms and signs....
Lobar holoprosencephaly
Lobar holoprosencephaly is a medical condition that may be associated with various symptoms and signs....
Midline interhemispheric variant of holoprosencephaly
Midline interhemispheric variant of holoprosencephaly is a medical condition that may be associated with vario...
Mitochondrial trifunctional protein deficiency
Mitochondrial trifunctional protein deficiency is a medical condition that may be associated with various symp...
Nil-Deshwar neurodevelopmental syndrome
Nil-Deshwar neurodevelopmental syndrome is a medical condition that may be associated with various symptoms an...
Ornithine transcarbamylase deficiency
Ornithine transcarbamylase deficiency is a medical condition that may be associated with various symptoms and ...
Palmoplantar keratoderma-esophageal carcinoma syndrome
Palmoplantar keratoderma-esophageal carcinoma syndrome is a medical condition that may be associated with vari...
Prader-Willi syndrome
Prader-Willi syndrome is a medical condition that may be associated with various symptoms and signs....
Presynaptic congenital myasthenic syndromes
Presynaptic congenital myasthenic syndromes is a medical condition that may be associated with various symptom...
Proximal spinal muscular atrophy
Proximal spinal muscular atrophy is a medical condition that may be associated with various symptoms and signs...
Semilobar holoprosencephaly
Semilobar holoprosencephaly is a medical condition that may be associated with various symptoms and signs....
Smith-Lemli-Opitz syndrome
Smith-Lemli-Opitz syndrome (SLOS) is characterized by multiple congenital anomalies, intellectual deficit, and...
Sotos syndrome
Sotos syndrome is a rare multisystemic genetic disorder characterized by a typical facial appearance, overgrow...
Sporadic infantile bilateral striatal necrosis
Sporadic infantile bilateral striatal necrosis is a medical condition that may be associated with various symp...
Synaptic congenital myasthenic syndrome
Synaptic congenital myasthenic syndrome is a medical condition that may be associated with various symptoms an...
Tayoun-Maawali syndrome
Tayoun-Maawali syndrome is a medical condition that may be associated with various symptoms and signs....
White-Sutton syndrome
White-Sutton syndrome is a medical condition that may be associated with various symptoms and signs....
cerebral arteriopathy, autosomal recessive, with subcortical infarcts and leukoencephalopathy 1
cerebral arteriopathy, autosomal recessive, with subcortical infarcts and leukoencephalopathy 1 is a medical c...
congenital myasthenic syndrome 20
Any congenital myasthenic syndrome in which the cause of the disease is a mutation in the SLC5A7 gene....
congenital myasthenic syndrome 4A
A congenital myasthenic syndrome characterized by postsynaptic neuromuscular junction defects, early-onset pro...
congenital myasthenic syndrome 6
Congenital myasthenic syndrome caused by mutation(s) in the CHAT gene, encoding choline O-acetyltransferase. I...
developmental and epileptic encephalopathy 104
developmental and epileptic encephalopathy 104 is a medical condition that may be associated with various symp...
developmental delay, impaired speech, and behavioral abnormalities
developmental delay, impaired speech, and behavioral abnormalities is a medical condition that may be associat...
intellectual developmental disorder, X-linked, syndromic 37
intellectual developmental disorder, X-linked, syndromic 37 is a medical condition that may be associated with...
intellectual developmental disorder, autosomal recessive 84
intellectual developmental disorder, autosomal recessive 84 is a medical condition that may be associated with...
mitochondrial DNA depletion syndrome 6 (hepatocerebral type)
mitochondrial DNA depletion syndrome 6 (hepatocerebral type) is a medical condition that may be associated wit...
myasthenic syndrome, congenital, 1B, fast-channel
A congenital myasthenic syndrome characterized by defects in postsynaptic neuromuscular junctions with early-o...
neurodevelopmental disorder with behavioral, ear, and skeletal abnormalities
neurodevelopmental disorder with behavioral, ear, and skeletal abnormalities is a medical condition that may b...
neurodevelopmental disorder with congenital cardiac defects and variable renal and ocular abnormalities
neurodevelopmental disorder with congenital cardiac defects and variable renal and ocular abnormalities is a m...
Tests providers may use to investigate poor suck
When investigating poor suck, a healthcare provider may order one or more of the following laboratory tests. Test selection is a clinical decision made by a qualified professional.
CBC with Differential
Measures red blood cells, white blood cells, and platelets to help evaluate overall health and detect disorder...
Comprehensive Metabolic Panel (CMP)
Measures 14 substances in the blood to assess kidney and liver function, electrolyte balance, and blood sugar ...
Urinalysis
Examines urine content to help detect urinary tract infections, kidney disease, and diabetes....
Symptoms commonly seen alongside poor suck
Dysphagia
Difficulty in swallowing....
Fatigue
A subjective feeling of tiredness characterized by a lack of energy and motivation....
Fever
Body temperature elevated above the normal range....
Headache
Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve....
Muscle weakness
Reduced strength of muscles....
Seizure
A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence ...
When to seek care
Seek care from a qualified healthcare provider if poor suck is severe, persistent, worsening, or accompanied by concerning symptoms. If you think you have a medical emergency, call your local emergency number immediately.
Frequently Asked Questions
What does the symptom poor suck mean?
Poor suck is a health sign or symptom described in medical literature. An inadequate sucking reflex, resulting in the difficult of newborns to be breast-fed.
Which conditions are associated with poor suck?
Poor suck has been reported in association with 48 conditions in the medical literature we index, including 3-methylglutaconic aciduria type 8, Alobar holoprosencephaly, Angelman syndrome, Angelman syndrome due to paternal uniparental disomy of chromosome 15, Congenital myasthenic syndrome. These associations do not mean you have any of these conditions.
Should I see a doctor about poor suck?
You should discuss any persistent or concerning symptoms with a qualified healthcare provider. This website does not provide diagnosis. If you have severe symptoms or signs of a medical emergency, seek care immediately.