Four signs, checked twice a day for 10 minutes each time, catch most mastitis cases in a nursing queen before the kittens stop gaining weight. The number that matters is 24: when 2 of the 4 signs sit together for more than 24 hours, the gland has moved past simple engorgement and needs a vet that day. A 48-hour wait is how a 1-gland problem becomes a 4-gland problem, a bottle-feeding schedule, and a 3-week setback for the litter.

The 4 signs are heat and color, texture, milk appearance, and the queen-plus-litter pair. Each has a measurement you can take with your hands, 1 kitchen scale, and a 10 RMB digital thermometer. Nothing here is a diagnosis and nothing replaces a culture. Breeding decisions, including whether to breed the queen again after an episode, need professional assessment. A single-gland version of this checklist sits in the mastitis watch guide.

The 4 signs, ranked by how early they show

Order matters more than severity. Heat and color change on day 1 of the problem, texture on day 2, milk on day 2 to 3, kitten weight on day 3 to 4. By the time all 4 are visible you are roughly 72 hours late, which is why each sign below carries its own action window instead of one shared deadline.

SignMeasure withNormal readingFlagAct within
1. Heat and colorBack of hand, 3 seconds per quadrant, 4 quadrants per glandWarm and pink, left matches right1 quadrant hot and 2 shades darker12 hours
2. TextureFlat palm, 1 cm deep press, 2 passesSoft, both glands equalFirm wedge, or a lump of 1 cm24 hours
3. Milk1 drop on a white saucer, from 2 nipples per glandCream color, 0 clotsYellow, watery, or 1 clot12 hours
4. Queen and litterRectal temp at 08:00, kitten weights at 06:0038.1 to 39.2 C, kittens up 10 to 15 g a day39.5 C, or 2 kittens each down 5 percent6 hours

Taking the 4 readings without upsetting the litter

Work with the queen standing in the box, 30 minutes after a feed: the gland is full then and the kittens are asleep. Cup the gland from below with a flat palm instead of pinching, because a pinch reads as hard tissue on every queen and tells you nothing. Compare left against right at the same moment, since asymmetry between 1 gland and the other 3 is the signal, not absolute firmness.

For milk, strip 1 drop from each of the 2 nipples nearest the suspect quadrant onto a white saucer and tilt it. Normal milk holds a smooth film for 5 to 10 seconds. A clot, a stringy thread, or a watery ring at the edge counts as positive. Photograph the saucer beside a dated card: day 3 milk does not look like day 5 milk, and nobody remembers colors accurately at 03:00.

The 24-hour line, hour by hour

Write the clock down on paper. A plan held in your head collapses at the second night feed, which is exactly when the decision gets made.

  • Hour 0: record side (left or right), quadrant (1 to 4 from the head end), time, and 1 photo. The clock starts here, not at the first vet call.
  • Hour 6: temperature only. A rise of 0.5 C or more over the 08:00 reading moves you to the hour-12 step early.
  • Hour 12: full 4-sign pass. Two flags at once means phone the clinic now; 1 flag means keep the 12-hour rhythm.
  • Hour 18: kitten weights, same scale, same time. A second 5 percent drop says the gland is not delivering, whatever it looks like.
  • Hour 24: visit with the log and the photos. A queen that is eating, under 39.5 C, with 1 firm gland, can often be seen at 24 to 36 hours rather than same day.

Learn the normal curve first

Glands are large, warm, and slightly lopsided for the first 72 hours in most litters. Engorgement peaks between 24 and 72 hours after birth, then gland size falls by about 30 percent over 10 to 14 days. With 8 nipples and 4 kittens, the rear 4 usually do most of the work and the front pair can stay soft; that is a preference pattern, not a sign. A queen with 6 kittens will empty all 8 and look symmetric by day 2, so compare her with her own day-1 photo rather than with another cat.

Kittens are the earliest sensor

Weigh at 06:00 before the first feed, on a 1 g kitchen scale, in the same order every day, and write the number down. Week 1 gain runs 10 to 15 g a day and week 2 runs 15 to 20 g. A single 5 percent loss over 24 hours earns a recheck at 12 hours. Two consecutive losses, or any kitten still under its birth weight at 48 hours, means milk supply is the problem and the clock is already running. Newborns lose heat fast: a litter that feels cool to the wrist at 37 C or below needs warming and a call, in that order.

Red flags that skip the 24-hour line

Call the same day, without finishing the 4-sign pass, for any of these: a rectal temperature at 39.5 C or above; 12 hours with no food; a purple, black, or shiny patch on the gland; milk that is bloody, green, or foul-smelling; a queen who leaves the litter for 2 feeds in a row; a queen who will not lie on one side at all; a kitten that is cold, limp, or has passed no stool in 24 hours. These are the presentations where a 12-hour delay changes the outcome rather than only the bill. If the queen is close to term, read the dystocia warning signs beside this list, because 2 of the signals overlap.

What not to do at home

Skip hot compresses on a firm gland. Heat raises blood flow and swelling, and a 10-minute compress 3 times a day is the most common self-inflicted setback. Skip human ointments, and skip deep massage, which can push bacteria through tissue. Do not pull kittens off a queen that is still eating and afebrile, and do not wean abruptly at week 3, because sudden removal spikes engorgement within 24 to 48 hours. Do not use leftover antibiotics from a previous cat, and do not wait for a gland to open before booking.

Five actions for the next 24 hours

  • Photograph both gland rows today with a card showing the date; that is your baseline, not a formality.
  • Start a weight sheet at 06:00 and 18:00 for every kitten, in grams, 7 columns for 7 days.
  • Take the queen's temperature at 08:00 and 20:00 and write both numbers even when they look normal.
  • Set 3 phone alarms for hour 6, 12, and 18 so the schedule survives the night.
  • Call the clinic at the first 2-flag pass and bring the log, the photos, and the weight sheet.

Frequently asked

How fast does mastitis in a queen become an emergency?

The practical line is 24 hours from the moment 2 of the 4 signs appear together. A queen with a fever of 39.5 C, milk clots, and 12 hours of anorexia has moved past engorgement, and the kittens usually start losing weight within 48 hours of the first sign.

Can I treat a hard, warm gland at home with compresses?

No. Heat increases blood flow and swelling, and 10-minute compresses 3 times a day are the most common reason a single gland gets worse. Keep the litter nursing if the queen is eating and afebrile, and let a vet decide on culture and prescription.

Do I need to weigh kittens every day?

Yes, at 06:00 before the first feed on a 1 g scale. Week 1 gain runs 10 to 15 g a day, so a 5 percent loss over 24 hours is visible on the sheet 2 to 3 days before the gland looks obviously wrong.

Related guides