What is Headache?

Headache is a symptom that people may experience for many reasons. It can be related to infections, chronic conditions, injuries, medication effects, or other health changes. The presence of this symptom alone does not diagnose any condition.

If you have Headache that is severe, persistent, or accompanied by other warning signs, contact a qualified healthcare provider.

Possible conditions associated with Headache

The following conditions have been associated with Headache. Only a health professional can determine the underlying cause.

17q11 microdeletion syndrome

17q11 microdeletion syndrome is a medical condition that may be associated with various symptoms and signs.

Acquired aneurysmal subarachnoid hemorrhage

Acquired aneurysmal subarachnoid hemorrhage is a medical condition that may be associated with various symptoms and sign...

Acquired methemoglobinemia

Acquired methemoglobinemia is a medical condition that may be associated with various symptoms and signs.

Acromegaly

Acromegaly is a medical condition that may be associated with various symptoms and signs.

Acute disseminated encephalomyelitis

Acute disseminated encephalomyelitis is a medical condition that may be associated with various symptoms and signs.

Acute radiation syndrome

Acute radiation syndrome is a medical condition that may be associated with various symptoms and signs.

Adiposis dolorosa

Adiposis dolorosa is a medical condition that may be associated with various symptoms and signs.

Adrenocortical carcinoma with pure aldosterone hypersecretion

Adrenocortical carcinoma with pure aldosterone hypersecretion is a medical condition that may be associated with various...

African trypanosomiasis

African trypanosomiasis is a medical condition that may be associated with various symptoms and signs.

Aicardi-Goutières syndrome

Aicardi-Goutières syndrome is a medical condition that may be associated with various symptoms and signs.

Alice in Wonderland Syndrome

A rare neurological condition that distorts perception, making objects, body parts, or time appear larger, smaller, or o...

Alternating hemiplegia of childhood

Alternating hemiplegia of childhood is a medical condition that may be associated with various symptoms and signs.

Related symptoms

When to seek medical care

Seek urgent care if Headache is severe, sudden, or occurs with chest pain, difficulty breathing, confusion, severe weakness, or other serious symptoms.