The SX medical abbreviation most often means symptoms, the things a patient feels and reports, such as pain, cough or tiredness. In some settings, especially surgical and orthopedic notes, Sx can instead mean surgery, so the words around it decide which one the writer meant.
It is usually written Sx, with a capital S and a small x, and it belongs to a family of x shorthand that includes Dx (diagnosis), Tx (treatment) and Hx (history). This page shows how to read it in real lines, what S/Sx means, and why a quick check of context clears up almost every case.
At a glance
Main meaning
SymptomsOther meanings
Surgery, mostly in surgical and orthopedic notesWritten as
Sx, sx, SX; S/Sx or S&S for signs and symptomsWhere you see it
Visit notes, triage notes, referrals, problem listsFamily
Safer to write
Symptoms or surgery in full when the meaning could be unclear
What the SX medical abbreviation means in most notes
In everyday charting, Sx means symptoms. A symptom is something the patient notices and describes, such as nausea, dizziness or a sore throat. A sign, by contrast, is something the clinician can observe or measure, such as a fever, a rash or a fast heart rate. That is why notes often pair them as S/Sx, signs and symptoms.
Sx is handy in busy notes because symptom words come up constantly. You will see phrases like "sx improving," "no new sx" or "sx started 2 days ago." It can also sit after a body system or illness to group a set of complaints, such as GI sx for stomach and bowel symptoms or URI sx for cold symptoms.
When Sx means surgery instead
Some surgeons, orthopedic teams and scheduling staff use Sx as shorthand for surgery. Lines such as "plan for Sx next week," "post Sx day 2" or "Sx consult" point to an operation, not to complaints. The surgical meaning is less common than symptoms, and many writers prefer clearer forms such as surg, OR for operating room, or s/p for status post a procedure.
| Clue in the line | Likely meaning | Example |
|---|---|---|
| A body system or illness before it | Symptoms | "cardiac sx," "flu sx" |
| Words like better, worse, new, denies | Symptoms | "denies urinary sx" |
| Words like plan, schedule, consent, post | Surgery | "consented for Sx" |
| Appears in a surgical clinic plan | Often surgery | "discussed Sx vs PT" |
Reading Sx in real chart lines
Clinic note: "URI sx x 3 days: congestion, sore throat, mild cough. Afebrile." Here URI stands for upper respiratory infection and sx means symptoms, so the patient has had cold symptoms for three days without a fever. See URI for more on that term.
Orthopedic follow up: "Failed 6 wks PT. Discussed Sx options, pt wishes to proceed." In this line the talk is about surgery, since it follows a failed course of physical therapy and leads to a choice to go ahead.
When you see s sx written with a space, it is usually a typing variation of S/Sx, signs and symptoms.
The x family: Dx, Tx, Hx and more
Sx is part of an old charting habit of shortening a word to its first letter plus x. Knowing the set makes many notes faster to read.
- Dx: diagnosis
- Tx: treatment, and in some notes transplant
- Hx: history
- Fx: fracture
- Rx: prescription or therapy
- Bx: biopsy
Like Sx, several of these have more than one meaning, so the same rule applies: read the full sentence before deciding.
What is the medical abbreviation for symptoms?
The standard abbreviation for symptoms in medical terms is Sx. When a note needs both signs and symptoms, it uses S/Sx, S&S or S+S. Some forms also use sympt, but that is far less common.
Patients reading their own notes should know that "denies sx" is not doubt about honesty. In charting, denies simply means the patient said no when asked. So "denies chest sx" means the patient reported no chest symptoms.
This explains a shorthand term in general. If your note mentions symptoms or surgery and you are unsure which is meant, ask the clinician who wrote it.
Charting Sx clearly as a student
Nursing, scribe and medical assistant students use Sx in subjective notes and triage summaries. Good practice is to name the symptoms rather than leaving a vague "sx present," add onset and duration, and avoid using Sx for surgery in the same note where it already means symptoms. If the clinic uses Sx for surgery, follow its approved abbreviation list. The nursing abbreviations guide lists other everyday shorthand you will meet next to it.
Frequently asked questions
What does Sx mean in medical terms?
Sx most often means symptoms, the problems a patient feels and reports. In surgical and orthopedic notes it can also mean surgery, so look at the words around it.
Is Sx surgery or symptoms?
It can be either. Phrases like new sx or GI sx mean symptoms, while scheduled for Sx or post Sx point to surgery. If a line is still unclear, the writer can confirm.
What does S/Sx mean?
S/Sx means signs and symptoms. Signs are things a clinician can see or measure, and symptoms are what the patient feels.
What does URI sx mean?
It means symptoms of an upper respiratory infection, such as runny nose, sore throat, congestion and cough. It is a common line in clinic and urgent care notes.
Why do doctors use x in Sx, Dx and Hx?
It is a long standing shorthand habit that shortens a word to its first letter plus x. It saves time in handwritten and typed notes, though many places now encourage spelling words out when there is any chance of confusion.