The MTP medical abbreviation is used in two main ways: in foot and joint notes it stands for metatarsophalangeal joint, the knuckle where each toe meets the foot, and in trauma and surgery it stands for massive transfusion protocol, a hospital plan for giving large amounts of blood fast. The setting of the note usually settles which one the writer intends.
A podiatry visit summary that mentions the 1st MTP is talking about the base of the big toe. An emergency note that says MTP activated is talking about blood products. In some countries MTP also means medical termination of pregnancy. Each use is explained below.
At a glance
Stands for
Metatarsophalangeal joint (foot); massive transfusion protocol (trauma)Other meanings
Medical termination of pregnancy, used in some countriesWord roots
Metatarsal (foot bone) plus phalanx (toe bone)Used in
Podiatry, orthopedics, rheumatology, trauma surgery, blood bankPlural or forms
MTP joints, MTPJ, 1st MTP, MTP 1 to 5Do not confuse with
MCP (knuckle joints of the hand) and PIP or DIP (finger and toe joints)
The MTP medical abbreviation foot meaning
Each foot has five metatarsal bones running from the middle of the foot to the toes. Where each one meets the first bone of its toe, called a phalanx, there is a joint. That is the metatarsophalangeal joint, and there are five per foot. They are numbered from the big toe outward, so the 1st MTP is at the base of the big toe and the 5th MTP is at the base of the little toe.
These joints bend as you push off with each step, which is why trouble there can make walking painful. Notes may say MTPJ, add an R or L for side, or list several joints at once such as MTP 2 to 4.
Conditions often linked to the first MTP joint
The big toe joint carries a lot of load, so it shows up often in foot and joint care.
| Term in the note | Plain meaning |
|---|---|
| Hallux valgus (bunion) | The big toe angles toward the other toes and a bump forms at the joint |
| Hallux rigidus | Stiffness and arthritis in the big toe joint |
| Podagra | Gout affecting the big toe joint, with sudden redness and swelling |
| Turf toe | A sprain of the joint from forced bending |
Surgeons may write MTP fusion or MTP arthroplasty when describing an operation on this joint. The OA and RA pages cover two kinds of arthritis that can affect it.
Massive transfusion protocol in trauma care
In emergency and surgical notes, MTP is a prepared plan for a patient who is bleeding heavily. When a team activates it, the blood bank sends coolers of red cells, plasma and platelets in set ratios so staff do not have to order each unit one by one. The plan also covers lab checks, warming the blood, and when to stop.
In a trauma note: "MTP activated in bay 2, cooler 1 received." The team has started the hospital's massive transfusion plan, and the first set of blood products has arrived. FFP, or fresh frozen plasma, is one of the products in those coolers.
Other uses and how to tell them apart
Some countries use MTP for medical termination of pregnancy, and that meaning appears in their laws and clinic records. In those notes the surrounding words refer to pregnancy weeks and gynecology care, so it is rarely confused with the joint or transfusion meanings. Within a single chart:
- A side, a toe number, an X-ray of the foot or a gout history means the joint.
- A trauma bay, blood bank, coolers or units means the transfusion protocol.
- Pregnancy dating and gynecology follow up point to the third meaning.
More procedure shorthand sits on the surgical abbreviations hub.
For students: joint names in the foot and hand
Students often mix up MTP with MCP, the metacarpophalangeal joint in the hand. The roots help: tarsal points to the foot and carpal points to the hand. Beyond the MTP joints sit the interphalangeal joints, written PIP and DIP for the toes and fingers, and the big toe has a single IP joint. Charting the exact joint and side keeps exam findings comparable from visit to visit.
This is a general guide to the abbreviation. A podiatrist, rheumatologist or the treating team can explain what an MTP finding means in your own notes.
Frequently asked questions
What does MTP mean on a foot X-ray?
On a foot X-ray report, MTP means metatarsophalangeal joint, where a toe meets the foot. The 1st MTP is the big toe joint.
What is the 1st MTP joint?
It is the joint at the base of the big toe. It is often involved in bunions, big toe arthritis and gout.
What does MTP activated mean?
It means a hospital team has started its massive transfusion protocol for a patient with heavy bleeding. The blood bank then sends red cells, plasma and platelets in prepared batches.
Is MTP the same as MCP?
No. MTP joints are in the foot, where the toes join the foot, while MCP joints are the knuckles of the hand. The names differ by one root: tarsal for foot and carpal for hand.