Dystonia can affect everyone differently. Symptoms generally appear slowly. For example, deterioration of handwriting, leg cramps, loss of control of the feet, sudden neck muscle contractions, and difficulty speaking can be observed. Symptoms can vary depending on the type of dystonia and may worsen with stress, fatigue, or anxiety, becoming more pronounced over time.

Dystonia can occur in different parts of the body. These include:

**Neck:** Dystonia affecting the head and neck muscles is called cervical dystonia. Head and neck spasms occur. Symptoms include involuntary head movements, such as tilting to one side. In some cases, a person's posture may be affected. It can occur at any age.

**Eyelids:** Increased blinking occurs. It usually affects both eyes. It can cause the eyes to close, making it difficult to see. Involuntary spasms occur, but these spasms are not painful. They may increase in bright light, during stress, or during interactions with people, and can cause dry eyes. This condition is called blepharospasm.

**Jaw or Tongue:** Speech problems, drooling, and difficulty chewing and swallowing can occur. In this condition, called oromandibular dystonia, some individuals may also experience teeth grinding.

**Vocal Cords:** Voice impairment can occur. The voice may crack, become thin, or sound hoarse. This condition is called spasmodic dysphonia. It is more common in women.

**Hands and Arms:** Symptoms may appear when writing or playing a musical instrument. Problems such as deterioration of handwriting and inability to play a familiar musical instrument can occur. Stiffness may also occur in the wrists and shoulders.